A chance to exchange notes on the little everyday things that cheer you up when you're down, or make an ordinary day into a better one. Winning move unaltered.
[Rosie] Granted that brass instruments are at base, merely tubes (so the didgeridoo qualifies as a brass instrument(??)), I think you could find many top pro brass players who say the metal matters very much. Not just for reasons of weight and balance, but the sound that they can get on them. Re the water valve, I once knew a trombonist who could play a scale on it. You had to be there.
(Pablo) They get a good sound because they feel comfortable with the instrument which is probably expensive, shiny, well put together, well balanced and has a nice easy slide. The material simply can't matter because it doesn't vibrate. As for the didgeridoo, I'd say yes, it's fundamentally a "brass" instrument because the sound is formed by the player's lips, not by a reed. So, for the same reason, is the sodding vuvuzela. I've played one made out of rubber. It blows just below the Bb below middle C. Harmonics are difficult to get and ridiculously out of tune anyway. BTW I'm not "top brass" let alone a top brass player. Big Band hack, more like.
(pen) It's a reed instrument. The wonderfully vulgar sound comes from a vibrating membrane. Brass is basically blowing raspberries down a long tube, in my case 9-13 feet.
[Rosie] Us French hornets have a technique called bouchée or cuivré, whereby one partially stops the bell with the right hand while blowing like the proverbial. If the metal is good, the bell vibrates like crazy, which you can hear. If the metal is crap, nada.