Klarinet Archive - Posting 000145.txt from 2010/11

From: bordini@-----.br
Subj: Re: [kl] Klarinet Digest, Vol 9, Issue 23
Date: Fri, 12 Nov 2010 19:52:12 -0500

Dear all,
It seems that as instruments warm up, strings go flat (not sharp; they try
to compensate playing sharper) and winds go sharp (not flat; since the air
travels faster, the pitch raises).
I think Adler explains this point in his orchestration book. But I'm not
sure.
To play in tune in an orchestra is a matter of compromise, and as much as
fixed pitch percussion (including piano and others) are involved, conform to
them. They are the only instruments which can't adjust their pitch with the
other instruments.
All wind tubes in an orchestra are based on D or G tubes (not considering
extensions, of course) and all brass tubes are based on a Bb tube. Why we
use to tune orchestras with an A is just an convention.
Best,
Ricardo

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Universidade Federal da Bahia - http://www.portal.ufba.br

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