Quote from: harrison.t.reed on Today at 07:33 AMI am sold on the "one rim to rule them all" theory. When I was growing up I had started on a 12C and, looking back on it, it probably should have just been a 6.5AL. It's easy to develop a nice and open, full sound concept on a 6.5AL, even if you are just beginning. I had a few young students (6th graders) years ago that I lent 6.5ALs to use at the end of their first lesson. All of them said that the piece just felt better. It was more comfortable, they could get a (comparatively) huge sound out of it without really changing up how they approached the trombone, and when I would have them try things like increasing the volume of air or playing "with a chest voice" to help them see that they weren't even close (yet) to playing with a full sound on even a .500 bore instrument, the 6.5AL actually made that possible. With a 12C, they couldn't even grasp the potential, because it requires finesse and a fair but of control to play that kind of mouthpiece. So, for the longest time and even to this day, that became my ace in the hole to get my students over the hump and out of their slump.
Why then, is it impossible for me to play a 6.5AL very well any more? I'm sure I don't even own one. Wouldn't I recommending what I play on on a day to day basis instead? Why recommend a 6.5AL right off the bat? Well, here's what I think:
The 6.5 rim is a nice medium in-between size for almost anyone and the examples I've seen have had a relatively rounded inner rim. Most 12Cs have a pretty sharp inner rim. So even when you're starting out, the 6.5 will be in the ballpark size wise, and if you've played on a 12C, the nice round rim is an instant improvement, comfort wise, over the sharp 12C rim. I've never had a student complain about the switch. Usually the first couple of notes is something like "This feels different. It's bigger". And then by the end of a few exercises it's "oh yeah, way better".
So, what is really going on? It's simple! All that happened is that the student switched from a small specialty mouthpiece for playing laserbeam stuff to a much more comfortable all around tenor piece. The 12C is not and should not be used to start out on. The cup and backbore of the 6.5AL encourage the student to play in a way that fills the piece up, and it gets them thinking about what they are doing when they are practicing because they can feel and hear the results of what they are changing up.
What does this have to do with "one rim to rule them all"? Well, I've realized that the rim has little to do with range and mostly to do with feeling comfortable. The old logic of thinking "bigger rim tends towards the lower register and smaller rim tends towards the upper register" is wrong. A comfortable rim helps me not blow my chops out and allows me to access the entire range of the instrument. What my students were mostly noticing on the 6.5AL was not the rim, but the way it felt to play. Sure, the rim was more comfortable, but that comfort mostly let them not have to think about the rim any more. Their reactions were mostly to response, how the air felt, and the sound. What a great place for a beginner to be at, mentally. Duh!
So getting the rim out of the way and out of mind, for the playing you do, is a great goal. I've done it for me. Purely by chance, buying a mouthpiece on a whim, but it's awesome to not have to think about the rim any more. At all. Having different cup sizes and shapes, and different backbores and shanks built off of the same rim is a GAME CHANGER! Every mouthpiece I use feels different to play, but it's not the rim that I'm feeling, it's the blow. So on my day to day trombone with my day to day mouthpiece, I just blow and go, and I'm good for any kind of regular playing in a BQ or trombone section. The range is full and easy consistently from D5 down to pedal Db. Sure, I can muscle out and F5 a few times, but that kind of range never crops up in day to day playing. I'm OK with that.
I have an "A" mouthpiece for my day to day horn with an interesting cup and backbore. The cup starts out with a shallower profile than my "C" piece, but then S's back so that the opening to the throat is bigger. I believe the reamer was also bigger. To play it, it feels like there is much more resistance. It projects a lot more but the lower register (
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on down ) is not rich like the "C" piece is. The same notes are all there but they're thinner. In the upper register, it sings. Slurs up to F5, F#5 and G5 happen easily. Same rim, same feel on the face - totally different blow. Is it easy to just enter in on an F5? Nope, still not easy, BUT! Entering on a D5 below it (as happens in some orchestral excerpts) feels like regular every day playing. So I have a piece that works well for some solo and very high orchestral playing.
I don't play my 3B nearly enough, but when I have to do a big band show, or if I wind up in brass band, I've got my small bore "A" piece with the same rim on it. Unlike the large bore "A" this piece doesn't get backed up. Nice upper register and it can cut.
On alto, you guessed it, same rim. Or essentially the same rim. The Doug Elliott XT105 rim feels like all my other pieces, anyways. Super shallow cup, medium ish throat. Does it make playing alto easy? Nope. But it sure feels comfortable and lets me focus on sound and intonation, rather than whether or not I can hit a note or my lip will go. I feel like that's where we'd all rather be musically, on all our horns.
Anyways, that was probably long winded, but I think the concept really works. Get yourself and your students on something that feels good. These days you can change the blow to suit the playing and instrument after the fact. Viva la CNC.
I see the point, especially the reason marked in red. It does make it comfortable FOR THE LIPS to have ONE rim. It is true. I agree fully on that, and if the awkwardness of a switch affects your playing then this method is the method for you. Don't switch, because it makes things easy.
What I discovered (for me) is the rim ALSO has an impact on the sound too. It is not only the cup that makes the difference and the smaller rim can be MORE right for the smaller trombone.
Since I own too many trombones to know better
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I have discovered it is a complex issue to find the match rim/cup because to me they respond/play different with different bore sizes.
For example:
I have a Karl Hammond 12 ML (Bach 5-ish) mouthpiece with a quite wide rim (to me it is). That one works very well with my .547 horns (read: Conn 88h, Bach 42, Kanstul 1570, Benge 190C, Schilke ST20). The response and sound just feel right. It is a good combination. A wider 11 ML (Bach 4G-ish) also works. No problem with that combination.
...but
I also have a SMALL shank Hammond 12 ML that I played for long period with my .525 horns. It is ONE rim, SAME cup but different SHANKS. I also have the Hammond 12 M with both shanks. I thought owning these mouthpieces just have to cover ALL my needs on the .547 horns and the .525 horns.
It fits the theory "One rim fits all", and YES anything goes, BUT when switching to a Hammond 13 ML - a kind of a Bach 6 with smaller rim compared to the 12 ML - something happens with the .525 horns (read: Conn 79H, Bach 36, Benge 175f). The horns get more alive, they get easier to play, they responds better and it is easier to get the timbre I want from them.
This goes against the "One rim fits all" theory. Because the smaller rim on the 13 ML is, to me, a better match to a smaller trombone.
This experiment has convinced me that the combination rim/cup/bore is a lot more complex.
My set up is I play Bach 11 C's or a 6 3/4 C on small bores when playing lead in a big band. That is a great combo. I can, but would not use a 6 1/2 AL or a Hammond 13 ML or not even a 13 M (shallower cup) because the timbre would not be right.
If playing classical stuff on the other hand I could use those on a small bore. This would give another sound, and could then be useful.
I do understand the advantage to have just ONE rim. It IS comfortable for the lips that way, naturally, but as Sam does is about what I do also. I do recognize a lot of the experience Sam shares. I may not be a NYC-freelancer but I can play, and I'm not worse on another mouthpiece.
Is switching rims good for ALL players?
This is another question. When younger I could not switch, but now I can. I don't know. I think you have to practice A LOT on the mouthpieces. I do switch daily and it works alright.
Is changing trombones depending on mood and work good for ALL players? When I was young I could not do it. I could not find the positions on the new horn, but now I can. It may take a couple of minutes when I switch to remind me of the horn (5 min), but give me an hour and the new horn feels completely at home.
/Tom