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When buying a new mouthpiece for a clarinet/saxophone - you're faced with a whole table of information on facing lengths, tip openings and chamber sizes. How do all these specifications relate to how a mouthpiece plays?

I'm interested in where each of these features are in a mouthpiece (as in, what's the 'facing', and why's it important), and how each would affect volume, tone, and control - or anything else relevant.

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That's really only part of the story. Yes, more gap leads to more sound power, but matching a mouthpiece to your embouchure (as well as your axe) is what matters. You gotta play on the mouthpieces to figure out which one(s) work for you. –  Carl Witthoft Aug 24 at 11:03
@CarlWitthoft - I realise that's a big part of it, but I'm not particularly looking at buying, I'm happy with what I have. I'm just interested in what all of specifications mean. –  Chris Aug 24 at 23:05

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