Full Boehm and Mazzeo Clarinets

March 29, 2012

Subject: Mazzeos Answer was excellent, for him and for me

Year past, many players in the Boston area played everything on the Bb clarinet, utilizing a Full Boehm instrument. I don’t remember anyone sounding poorly on their full boehm instruments . Gino Cioffi, my teacher for a while ,used Full Boehm minus the low Eb, and sounded gorgoeus, (in the true sense of gorgeous much of the time), or even most of the time. The exception were when the orchestra, notoriously sharp in Boston at the time, would leave him clawing and a bit flat. But no matter where the pitch was, Cioffi never pinched or felt anything but righteous about his pitch. That of course, is the only way to fight a pitch problem, for any change in the embouchure or whatever and the sounds suffers. The idea of playing everything on one clarinet was well founded for it alleviated many problems, specifically those of switching from one clarinet to another, quite quickly on occasion. Cioffi would worry about his articulated g# key and would pull on it with his other hande before any solo passage in which it was employed. The odea of playing all on the Bb, full boehm with the low Eb was imported from South America, at least in the New England area at that time in the 50s and 60s. Guigui Efrain, a clarinetist from Argentina was playing around Boston at the time. He played all on a one piece Buffet full boehm instrument, with a crystal mouthpiece of his own design, actually made by one of the pomarico brothers, the one living in Argentina. (the other brother settled in Italy).
At that time Rosario was the Bass clarinetist with the Boston Symphony . It is my feeling that his design for his Mazzeo System clarinet was based upon the bass clarinet and its various difficulties in rapid passages.
The basic idea of that clarinet, if it is not already well known by many readers was that the throat Bb with its many problems, and various solutions was eliminated and replaced by the most correct fingering which is the A, plus the third trill key on the right hand side of the clarinet.
He designed a simple articulation which lifted the third trill key when any one or all of the fingers on the right hand were engaged. The trill key with the A key made the perfect throat Bb. It was extremely simple to achieve as virtually any finger on the right hand when placed would open this key. For every simplified motion there is always an additional action. You could not place any fingers down without getting that open trill key.Hence, you could not place any fingers down except fopr those which were actally assigned to produce notes, so the supposed shading or tuning which almost every clarinetist used were impossible, and for some that made the Mazzeo System Clarinet simply out of the question.
For some, that was the turnoff, why give up all of the unconscious finger movement you had used ? For me, it was not the problem. I found that it was much less complicated to use the fewest fingers to shade, for much of that shading had been habit, for extra movement which didn’t do all that much it took only the acceptance of the premise and it was both over and a new experience, knowing every movement you make playing the clarinet. Simply, I accepted his idea ansd incorporated them into my playing, It was neither long nor difficult. The other innovations were relatively simple.The middle b to c# was articulatd, eliminating any roughness in playing legato lines such as Bolero(in the opening solo). You will remember that the bell was straighter and lighter, making the middle B quite bright initially , but becoming much more even and in tuneas one got used to playing it naturally, instead of louder and with more resonance.Making changes in the embouchure to accomodate uneven sounding notes became a thing of the past and as a result, my playing became much more secure. There was also a covered thumb which became another way of smoothing ones technic. While I had a set of Selmer Centered Tone full boehms Mazzeo clarinets, I was able to perform with more surety. So, the full boehm with the Mazzeo system was my ideal clarinet.
What transpired upon the passing of Rosario Mazzeo was also the passing of his invention and innovation, the Mazzeo Clarinet. It had always been best in full Boehm though much more simplified models were introduced in order to please more players, but it was the wrong philosophy for the Selmer Company.Ideally, when the patens rn out, another or a few other manufacturers should have adopted the system. But,they did not, and as players had more clarinets to try, they did not include this wonderful invention. They are and were not extra keys, superfluous and easily out of adjustmnent. My clarinets simply never gave me any diffciulty whatsoever. I was playing eight services a week as Principal in the Milwaukee Symphony Orchestra, One christmas week we played a childrens concert with both the Coc D’Or by Rimsky Korsakov with its clarinet candenza and Peter and the Wolf. Between ten and twelve noon, we played that program three times for children.But with time, These clarinets became out of style. The Mazzeo Clarinet is completely finished now, and the full boehm is coming right after it.
They are excellent instruments, faciitating all kinds of playing, but in actuality they provide more musical options for the clarinetist. For me, seeing but 6 rings on a clarinet is weird and incorrect. With that extra ring, your worries are greatly diminished.After Rosario left us, I myself became restless and play clarinets made of different materials.

But do not think that the currenb plain boehm is better. It is just much easier to buy,to make and is in profusion.Doesn’t make it right, or best.The fraternity of clarinetists, teachers find it in vogue at present.
Years and years ago, Larry Combs told me my clarinet looked like a Christmas tree. Being scrutinized by the others choosing reeds st the Van Doren shop on rue Lepic, I heard the question (in French), “Cor Anglais”? The meaning was clear. Regardless of what you play, keep practicing.
stay well, sherman


Rosario Mazzeo in the world of Music and the clarinet.

January 30, 2009

Dear Sherman Friedland,

I am V O G, a Spanish clarinet player. I am in the last year of clarinet studies in Conservatorio Superior de Castellon (Valencia, Spain), and in the spanish teaching system, we have to research about the clarinet, clarinet makers, inventors, players… I took part in the Claremont Clarinet Festival in 2007 and 2008, and get an special relationship with h Director, Margaret Thornhill. I learned from her a lot of things during that weeks, and I took my first contact with the name of Rosario Mazzeo. She plays with Mazzeo System, and taught following his phylosophy. I was very impressed with that person, and I have choosen Rosario Mazzeo for research in my final project.

We don’t have neither book of Mazzeo in spanish, nor translation, nor any other book speaking about him. For that, I would like to get the information in the better way, listening in the first hand the impressions of their students. This is the reason that I am writting you, I have read that you studied with Mazzeo, and I ask for your collaboration, if you wish. I will divide my research into three principal parts, Mazzeo as Clarinetist, Mazzeo as Teacher, and Mazzeo as Inventor. I will be very thanked to you, if you can contribute to my project any thing related with Mazzeo, anecdote, student experience, your experience with his system, and everything that you think interesting to my project.

Thank you very much for your time. I hope you can help me.
V.O
———————
Dear Mr Ortiz:

The many contributions made by Rosario Mazzeo to the clarinet fraternity concern themselves with his innovation with the Mazzeo System Clarinet, an instrument which in its full system served to cut away many inherent mechanism difficulties of the basic technic, including the Bb located in the throat register. This has really not been solved by anyone else, not Stubbins, nor Rossi nor anyone who has added any keys or mechanism to the instrument. It works simply by opening the best Bb there is and facilitates it with a way of opening the third trill key easily and without problems. Others do not achieve this simple mechanistic and musical problem. The whole way of playing rapidly and with great facility achieves as well an advance in the embouchure as there is simply less one needs to do to play the best Bb. Of course, the problem of playing around that register by adding or subtracting fingers in order to provide” resonance” is simply not something that is used at all. In the years I played the Mazzeo Clarinet as Principal in the Milwaukee Symphony Orchestra, I never ever had a problem with leaving extra fingers down. It simply doesn’t help and getting rid of the problem was a great relief. Everything I had to play became relatively simply technically, period. There were no exceptions. The full boehm Mazzeo System was necessary and provided a great help to me in all ways.The duplicatearticulated G# and the B-C#(low e-f#) were of significant importance in maintaining perfectly smooth execution. All in all, I must say that I always feltmuch more complete in technical execution than with ordinary boehm, the problems of which werealways a new problem.But the passage of time has provedmy efforts less than the implication of the status-quo, the ordinar Boehm clarinet.What a disappointment for Rosie; you see,his system was only available on a Selmer clarinet, an instrument not greatly in vogue in the symphony orchestra, except for Boston, where everyone played Selmer. So goes thesymphony,so goes the town, we all played Selmer. It is a much refined bore and clarinet now, however Rosie left us more than a dozen years ago, and with him, so died his patents.Had he had the wearwithall to moveabout as much as he did in younger years,he would have hookedup with Buffet or with Yamah.Thingswould have been different.There was too much doubt in the eyes of the rest of the students and their teachers. That is of course, my reason for disdain of the Buffet clarinet.The only really good Buffets were the ones worked on by knowledgable technicians like Hans Moennig of Philadelphia. Or those who understaood clarinet voicing and tuning and were able to make the changes necessary. The clarinet business in the US is totally different now, as many principals play Selmer, as does Morales of the Philadelphia or Larry Combs who plays the Opus of Leblanc, designed by Ridenour. Eddie Danielstoo plays the Leblanc clarinet.

Mazzeo was also the best Bass Clarinetist, but prior to that he was the best Eb clarinetists for it was he who created the distinctive way of playing the solo in “El Salon Mexico” by Copland, but if you listen to that solo you will hear that he really did it better than anyone has since, mostly because he understood the harmony and took advantage of it.
As far as the Bass is concerned , listen  to the the William Schumann third symmphony and you will hear a Bass clarinet solo, so rapid and nimble and into the altissima that it has not been approached since. The work was written with Rosie in mind.
Of course, Mazzeo was a noted photographer, having worked  with Ansel Adams and Bret 0Weston. He is also remembered as being an ornithologist .
Of course he was the personnel manager of the Boston symphony and it was he who was the first to introduce playing “behind  the screen” for the audition .
As far as the significance of all of the above, the clarinetists who read this will know, for it is different for each of you.
The fact that the patents were not taken up by any number of large companies when Mazzeos patent with Selmer ran out was not   the fault of his clarinet, but of the clarinetist fraternity that didn’t “buy it” because it was only available on Selmer.
As far as a teacher,for me, he was the best of any. I studied with him much before his retirement from the BSO,in a time when the activity on Saturday morning was never less than a maelstrom of teaching and learning.He was a rough rough teacher, but the best there was. I fought with him many times, and apologized many times as well. What else what I supposed to do?

Thank you for your note and your request. Please feel free to use any or all of the articles on this entire site to explore for material on Rosario Mazzeo. Certainly there is lots of it, and you are welcome to use any or all. (Please accord all submission their origin as being this website..
Rosario Mazzeo was as I have mentioned, my teacher for 6 six years at the New England Conservatory. I studied with him at the height of the publicity or his new clarinet and benefitted considerably from both his tutelage and his instrument, which I firmly believe was the clarinet that gave me the most freedom of any I had played in musical expression and control of the instrument. He was also a photographer, ornithologist and the manager(personnel ) of the Boston Symphony for more than 30 years.There are many many articles concerned with his many contributions to the clarinet world. I was both a clinician for the instrument for the Selmer Company and  am proud to say Rosie was my friend for many years.
Most sincerely,
Sherman Friedland

Addenda:

there are many Mazzeo System Clarinets still out there, but less full boehm and the one thing that needs to be noted is that these instruments need to be adjusted perfectly, and they are seldom in this pristine condition which is necessary for the instruments to function properly. There are collectors who really have no knowledge of proper condition. The value of these instruments becomes only intrinsic. I have seen overhauled instruments completely redone and not capable of the simplest articulations. I learned myself how to make the proper adjustments playing them in a professional situation.SF


Mitchell Lurie, and the Mazzeo Clarinet

August 2, 2007

Here is a letter from a music dealer in Wichita concerning the Mazzeo Clarinet, with which I was fascinated:

Dear Mr. Friedland,
Thanks for the Email and good morning from busy Wichita. When I was much younger and not as wise as I am today, I met Rosario Mazzeo. The clarinets with his keywork were new at that time and I didn’t like his ideas at all. The missing bell ring and the fact you couldn’t leave your right hand down without playing a B-flat (or was it an A ?), put me off. Mr. Mazzeo was amused by my stupid comments and I’ve since come to the conclusion that he actually might have had some good ideas. I visited with Mitch Lurie some years later, who actually had fitted his Buffet with a Mazzeo mechanism for the third line B-flat. Be all of this as it may….I’ve no Mazzeos now in the shop. But they do show up from time to time and yes, I’ll be in touch with you. A telephone number from you would help. Possible?

Best wishes,

GL


Mazzeo Repair, repair persons

April 27, 2007

Professor Friedland,

I am a Mazzeo player from the 1960s with several Bbs (Series 9 and Series 10) and an A. I have taught college level applied students as well as a private studio and still play professionally.

I’m always a bit leary of any technician tinkering with the mechanism. The technician I had used for the past 10 years has decided to give up the repair business. He has no recommendations. Do you have any contacts with good technicians in the Southeastern states – preferably between Florida and North Carolina who are familiar with the Mazzeo mechanism?
__________________________________________________________________

Mazzeo day was always a full and very exhausting day for all of us who studied with him in seminar fashion, taking all of Saturday morning for all of us to play for him. He is the best teacher of the clarinet and the music for it that I have ever known and he was the most intense with the most expressive use of the language. The special area of expertise was orchestral decorum and perfect rhythmic interpretation. An ignored dynamic was an incorrect note, a pianissimo that was mezzo piano was unacceptable. Always, and he never erred.

I am sure the Donald will do well for you and I know that he stands behind his work and will get you what you need. He did one Series 10 Mazzeo which I used to demonstrate to my students at The Crane School of Music, and they were quite impressed, with both the sound and the Bb. And so too, was I.

Regarding your own Mazzeo clarinet, the heavy a2 is part of the mechanism which I had fixed by a very special young repairperson at Twigg Musique in Montreal, who passed away at an early age. He installed for me a special clutch on that very note that when disengaged would play like a regular 17-6. Donald Hinson probably knows of it, and may have overhauled it. Mr Huba owns it.
He may have figured the mechanism out, very small as it was, it was a great relief to me after Daniel(of Montreal) made it. The upper joint rings can be fixed by Donald. I think that there may be a couple of screws into posts that are too tight. Of course, without playing them I can not tell, and believe me, repairs are not interesting to me, When I played Mazzeos I did my own mostly and they were remarkably stable clarinets.
I am sure that one or the other of these gentlemen will be able to help.

Sincerely, Sherman Friedland

I would love to play a concert for you down at Brevard.

I last performed in Florida 1986 or thereabouts, I toured with the MIT concert band playing a clarinet concerto by John Bavicchi. The first performance was at Astronaught High School in Titusville on the night that the shuttle blew up. There was debris all over out motel roof

I do not think I could ever go back to a “regular” clarinet. When I had the opportunity last year to purchase another Selmer 10 Mazzeo (c. 1968) I jumped on it. My original is a Series 9 (c. 1965). I had the great distinction to talk very briefly with Mr. Mazzeo at the National MENC convention in Chicago around 1970. What a delightful and engaging man and what a joy (with pain if unprepared) it must have been to have lessons with him. I also had a “master class” private lesson with Gino Cioffi when I was a student at the University of Florida. Through his very broken almost non-English communication, he spoke so much to me about expression and technique. I treasure the signed picture that was taken with us playing together.

I have been in contact with Donald Hinson only because I found his name on your former website. He is most willing to help me out. My husband and I may be spending more time in NC and was really hoping that he would pan out.

I also will be in touch with Mr. Heimann. Of course my main concern is sending “my babies” off and then not being there to see if the fix has been done correctly. Gee, I wish I could heal my own. Any suggestion? The biggest problem is with the a2 not feeling like it is sealing correctly and the upper joint rings always being a bit on the “heavy high” side facilitate. Hope I’m making sense.

Thank you for getting back in touch with me so quickly,

Hi:
Glad to know you and that you are a serious Mazzeophone player, (scarcer than hens teeth these days).
I know of two fellows ,both within your prescribed area. One is Paul Heimann who is in Russelville Arkansas. He has done several Bbs for me with excellent and very economical prices.
The other is Donald Hinson, has done a lot of work for George Huba, an avid collector of Mazzeo Clarinetswho collects the Mazzeo instruments.
Their emails are below. I would get in touch with them and see what the lay of the land is.
Donald Hinson
Hinsons
E-mail Address(es):
bud@intrstar.net
Paul Heimann
hornfixer.geo@yahoo.com
E-mail Address(es):
hornfixer.geo@yahoo.com

sherman


Mazzeo System Centered Tone ….no riddle

March 25, 2007

Professor Friedland,
We have had some e-mail correspondence in the past and I value your expertise and experience with the Mazzeo system horns. As the owner of 3 Selmer Paris, 2 Selmer Signets and a spate of Bundy Mazzeo’s ( as well as one Stubbins) I have a question about a pair of horns recently to make at least 3 appearances on e-bay. They were a pair of Selmer Centered Tone horns. I had not previously encountered this combination and wondered whether perhaps they had been sent to the factory to be retro-fitted with the Mazzeo mechanism. In your experience, have you encountered Centered Tone Mazzeo horns? I was reluctant to bid too great an amount on these horns as I have not previously seen this combination. Would you be able to shed some light on this subject. Your sage advice on this subject would be most appreciated.

Additionally, I have never found an Eb Mazzeo system, although a person selling an Ab on e-bay claimed to have been offered Mazzeo’s personal horn. (By the master himself) Obviously, there must have been some. It seems strange to not have encountered at least one over the course of the years. As always, your informed input would be greatly appreciated.

With thanks,JG
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JG:
Yes, indeed I have encountered Centered Tone Mazzeo System clarinets, which were made in the late 50s early 60s. I owned and played on a set for a number of years, and these that I had were excellent, an extra pair that Mazzeo himself had. Of course, no one can tell the actual quality,however I would get them the next time you have the opportunity. I think I know where they originated, which if I am right, was in Boston.
No, the Eb you heard mentioned was probably not Mazzeo’s own, implying that while Eb player with the BSO, he used that one. The answer is no, because when he played Eb, it was much earlier, perhaps even in the 30’s. I never ever heard of an Ab, and I would have, since I was a student and friend of his for a number of years.

best wishes, and stay well.
Sherman Friedland


Mazzeo Clarinet Fingering (s)

December 5, 2006

Dear Sir; I have a Mazzeo Clarinet which dates back to around 1970. I am in need of the alternate fingering chart and also do you have a source where I could get the silver pin that locks puts it back into regular playing? Thanks for your time.
——————————————————————-
Hi Ben:
There is no alternate fingering chart necessary, which is the beauty of this system. There are no alternate fingerings.
Here is how it works:
The system features a simple way(s) for playing the throat Bb, widely reputed to be the most difficult note on the clarinet to play well ,clearly and in tune.
It uses the third trill key, which lifts when you play the A spatule and any combination of fingers, or even a single finger which opens the A spatule, giving you of course, the throat Bb with the best possible fingering for it on the Boehm clarinet.
First, for an example, play the open g on the clarinet, next playA on the a spatule (a) as it is called. Now you want to play Bb and then the note F a perfect fifth above. You play the A as stated, the Bb with the a spatule and the first finger of the right hand which is three-fifths of the fingering for the following note, F, as we’ve said.
You finger the note Bb with as much of the fingering of the note that follows the Bb while playing the Bb, making the legato almost sure to be perfect, and you reverse the process descending. It may be confusing to read but simply practice it and it will come, much more easily than fingering each note and then suddenly having to add five or six fingers at once.
That’s all there is to it. You will find that when you release the Bb, you must bring your fingers up with clarity and quickly or else you will get an additional blip in the sound.
That is of course, if your clarinet is adjusted properly. As far as a “source” for the pin that changes the clarinet from Mazzeo System back to regular boehm, there is none as far as I know, however I would suggest to you that virtually anything that general size that will fit can be used easily and efficiently. Of course, someone somewhere will be happy to customize one for you.
Good luck..
Best regards for the holidays.
Sherman Friedland


Mazzeo System Selmer Signet, basic fingering

September 18, 2006

Greetings! I have recently acquired a Mazzeo Special by Selmer, Signet.
Any help you could provide with a fingering chart would be greatly appreciated!
Thank you!
Jim
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No fingering chart is necessary if you know the basic clarinet fingerings.

If the horn is in correct adjustment when you put down the right hand the third trill key will open. With that open all you do is open the a spatule A key and you have the throat Bb, the best one there is on the clarinet.
Any combination of fingers including either the right hand rings or the left hand will open the trill key, so it is a good way of playing the throat Bb.
The only problem is that you cannot put any fingers down when you are not playing Bb, meaning that anything down will again open the trill key, giving you some other note than the one you want.
Probably it will be much easier to do it with the clarinet in hand.
If the trill key doesn’t open, either there is a clutch on the right hand to keep it shut, or it needs to be repaired. The clutch is a small slide that goes up and down, up closes the third trill key, down allows it to open freely

Good luck, sherman


Mazzeos 309 Fingerings for Bb

July 12, 2006

Hi Sherman,
I have a Selmer Signet Mazzeo coming to me and I was
wondering if I could get a breakdown of the facets of the horn that are not found on Standard Boehm clarinets. Do you have a graphic fingering chart or such that I could reference? Plus, are there really309 fingerings for throat Bb?

Hello:
Regarding your note concerning the Mazzeo Signet clarinet you are awaiting and the question concerning the 309 fingerings for the throat Bb, let me explain :
The point is not to say “Yes, there are 309 fingerings for the throat Bb”, but simply explain the Bb mechanism and the principal involved in executing any of these fingerings.
If you will close the 2nd ring of the left hand and watch closely, the third trill key will open giving you a rather fuzzy throat A. If you add the A key you will have the best and clearest Bb available on the boehm clarinet. The third trill key is opened by an articulation. In fact any combination of rings and the A key will give you this best of all Bbs for the same articulation occurs with each key or combination that is depressed.
Moving into the upper register is really terrific because you finger the Bb with the combination of fingers for the note following the Bb, that is to say ,if you are going to play f on the 5th line, you depress the A key and the register for the Bb, and you also add the first finger of the right hand
When you go to the F all you do is to move from the A key to the fingering you have already depressed, the index finger of the right hand and the 2nd and third fingers of the left.
You have just made a lovely and simple legato move from the Bb to the F, not an easy or fluid motion on the plain boehm clarinet, especially for the younger player.
It is the same for any of the notes on the instrument: depressing any key or combination of keys opens that third trill automatically, the finger you add will give you the desired note, a very simple movement requiring much less motion.
One of the more difficult gestures on the clarinet is moving from the throat Bb to the B, the long B involving placing all of the finger down plus the lever for the B.On your Mazzeo Clarinet you finger the B prior to playing it,however you have already prepared to play the B. The Bb is again perfect and all you do to get the long B is to allow the A spatule to close.
It is an utterly simple system. It is the most simple way to cross the so-called break of the clarinet and not emit a sharp and fuzzy,incorrectly fingered Bb. Now there have been improvements to the plain boehm clarinet, especially in the area of the throat Bb, however there is no plain boehm that simplifies the physical motion of entering the upper register from below than does the Mazzeo. You can talk about the various double vents or opening holes that have been added by various makers, however they are more troubling than is the Mazzeo and they do not use the fixed problem as Rosario does to enter the upper register without the tumult caused within the mouth, which is rendered totally unnecessary by the Mazzeo System clarinet. Turning the process around, going down from the upper register is a relatively simple operation. You cannot leave fingers down or the trill key will open. This motion I was able to eliminate within three days, and I was able to trill from the natural A to B with no blips whatsoever. This I did while on a professional engagement. But then again, nobody ever said practice is eliminated with this innovation.
On the plain boehm, the register key does double duty and it does not
“multitask” well, as it produces a sharp Bb because the register key is for moving up a 12th and is not well-located for the throat Bb.
The best location for the venting of the Bb is the third trill key, a
difficult fingering simplified by the Mazzeo Clarinet,opening this key with any combination of fingers depending upon the note following the Bb, and yes, there are 309 ways to do this.

Write if you have any further problems.
Play well.
sherman

>


Repairing a Buescher Mazzeo Clarinet

September 12, 2005

Dear Sherman,
I am in the process of repairing a Buescher Mazzeo Clarinet.
I know that the mechanism is there to improve the mid Bb but I understand that there are alternate fingerings that can be used. In my trawl through the web, you seem to be the only one I can find with any knowledge of these.
Are you able to help or point me to a site that could help please.
Thank you for your time

—————————————————————–
The basic Mazzeo fingering is for Bb, the so-called throat Bb.
Any combination of fingers of the left or right hand open the a spatule and the third trill key which produces the Bb.
Naturally then, all one need do is to finger the note following the Bb and the a spatule and the third trill key will open giving you the Bb, the best one possible on the clarinet. There are 309 different ways of playing this Bb.
The only drawback is that one may not leave any fingers down because it will produce the a and nothing else.
Unfortunately most clarinetists leave fingers down because of facility or because they wish to temper certain notes. I hope this helps.

good luck, s


A Syllabus for professional preparation.(For Rosario Mazzeo)

August 7, 2005

After being discharged from the Army, I returned to my home in Boston and waundered around between several teachers for a about a year, while attending Boston University. I studied with Gino Cioffi, Principal of the Boston Symphony for a year and with Pasquale Cardillo, First clarinet with the Boston Pops before I found that if one wanted the finest teacher, that would be Rosario Mazzeo, bass clarinetist with the Boston Symphony  and personnal manager, ornithologist, photographer, and inventor.
(Talk about impressing a student, I saw him walk out on to the roof of Symphony Hall to rescue a wounded pigeon).
Well, I heard that he only took 6 students and in order to be accepted, one had to audition. I auditioned with the Neilson Clarinet Concerto, and was accepted as a student.
All lessons, actually it was a kind of seminar) were attended by all of the 6, where each one would play to be evaluated by Rosario and of course, the others.
On Friday evening, I would go through 5 boxes of Van Doren reeds, and at that point each box consisted of 25 (bad) reeds, ($3.75), in preparation for Saturday morning.
Those seminars were the most intense sessions of playing that I have ever had, before or since. There was literally no time to swab out the instrument and Saturday afternoon was universal crash time.

At the first meeting Rosario  explained that it would take at least a year or a semester to understand his vocabulary, which I found not to be the case, but the instensity with which he used words was unforgettable.

I was prohibited from playing any repertoire, solo or chamber music for the first year. Well,not prevented, I was given only the following exhausting preparation for each time I played.:

There were three main books upon which each student worked: Emile Stievenard, Study of Scales, Gaston Hamelin, also a study of scales, however with emphasis on legato playing and even-ness, and finally, and this was the coup de grace, Eugene Gay, Book two, a rather bulging hard cover book of every conceivable kid of study, including works by Baroque composers, legato and staccato and rhythms and all of the possible permutations of any particular passage.

As to the first, the Stievenard (published by Associated), these were simple scales in every key, divided into two pages of simple one line exercises, facing one another.
The key factor here was the utilization of the metronome which was used while we executed each line.
The metronome (and I will never forget the setting) was set on 43-46, or the slowest it can be set).
The idea was to play the first exercise, a simple scale in eighth and quarter notes played broadly and articulated with equal strong attack, and then there was one measure rest and here was the trick, for the next exercise was in eighth note triplets, pianissimo instead of forte, and legato instead of staccato and to be started exactly on rhythm waiting only the three beats of rest beween.
I remember finding this the most difficult work I had had, yet it was the best preparation that I can think of for learning to play in time and also to follow a conductor
If you did not make the rhythmic modulation exactly you simply had to go back, and there were no exceptions. This could take seemingly forever and it was trying and it was frustrating and yes it was criticized and many students dropped out, yet I still say there was no better training than this wonderful little book, (of course as directed by Mazzeo)
If you were successful, you went on to Hamelin, (who of course had been principal with the Boston Symphony early on and was really, along with Daniel Bonade, the father of the American school of clarinet paying, which was an essentially French “school” Ralph Maclain legendary principal of the Philadelphia studied with Hamelin and Bonades students were many).
Hamelin was all beauty and legato and even. I learned so much about true legato from this wonderful book of studies, really studies of scales. There were also lovely whole tone scales and interesting rhythms to play or execute actually, and by then you had raised a sonsiderable sheen of perspiration.
The final part of your syllabus was the Eugene Gay Book II which was a hard covered compendium of every conceivable study from the simpest Mozart, to the most complicated Bach, divided with scales, followed one to another of major and minor thirds. (for instance, play a scale of thirds using only minor thirds, than move to major thirds and do it rapidly and slowly and with only the most beautiful legato.
No mistakes were tolerated and repititions were endless. Yes it was like some kind of very rigoruous military training, yet if you able to keep your senses about you, you had a real technic when you got through.By technic we mean control, not just the ability to astound your colleagues with your wipeout warmup, but the abilty to have total control over every facet of clarinet technic and …of music.
Do I use this syllabus for every student. No, I do not, but certainly the serious students must confront these problems and resolve them if they hope to be employed in any kind of playing position. There are many different approaches and everyone does not have that special intensity, that great ear that was enjoyed by Mazzeo and his students.
Was he perfect? No,(none are pefect) he was not, but you were definitely prepared. (as Rosie always said) “as ever” I will always say thanks.
sherman friedland