TromboneChat

Anyone played one of these? I’m assuming it’s shallower than an 11c?

Actually it's deeper. E is the shallowest cup and A is the deepest. No letter is B. Note that this only applies to the original Bach mouthpieces. G generally refers to the drill used for the aperture. Note also that AL is not a very deep mouthpiece but instead a "custom model" which seemed to be a great general purpose mouthpiece.

11A was probably intended for small shank baritone horns.

BGuttman wrote: ↑Tue Feb 01, 2022 5:02 am Actually it's deeper. E is the shallowest cup and A is the deepest. No letter is B. Note that this only applies to the original Bach mouthpieces. G generally refers to the drill used for the aperture. Note also that AL is not a very deep mouthpiece but instead a "custom model" which seemed to be a great general purpose mouthpiece.

Actually, the tenor trombone mouthpieces with no letter designation can be either A or B. The older Bach mouthpiece manuals make it clear that "A" mouthpieces are "Medium Deep" and "B"s are "Medium". All the non-letter mouthpieces are described as either "Medium Deep" or "Medium", and they fall into the following two groups (listing only through 15):

"A"/"Medium Deep"
3, 6 1/2, 9, 11, 15

"B"/"Medium"
4, 5, 6, 7, 8, 12

The 6 1/2 is truly a "Medium Deep" cup. Bach probably used the 6 1/2 AL to avoid calling it "6 1/2 L", which would have been confusing.

Originally G designated a "Deep", or Bass Trombone cup (which was accompanied by a larger throat and backbore).

I would guess that the 11A in question is no different from an 11. Since it is a NY model, Bach may not yet have settled on leaving out the letters for A and B cups.

What I love about Bach's nomenclature is its so clear what all of it means.

Matt K wrote: ↑Wed Feb 02, 2022 12:54 pm What I love about Bach's nomenclature is its so clear what all of it means.

Clear nomenclature and a Teutonic tone quality, what more could you want?

What really weirds me out is how (at least according to published spec) the 11C is nearly identical to 7C, while the 6 3/4C is much further away from 7C.