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From: | Flaming Hakama by Elaine |
Subject: | Re: \transposition question |
Date: | Thu, 31 Aug 2017 16:13:37 -0700 |
---------- Forwarded message ----------
From: Gregrs <address@hidden>
To: Menu Jacques <address@hidden>
Cc: Lilypond-usermailinglist <address@hidden>
Bcc:
Date: Thu, 31 Aug 2017 21:52:00 +0100
Subject: Re: \transposition question
On Thu, Aug 31, 2017 at 09:50:05PM +0200, Menu Jacques wrote:
Hello folks,
I’m trying to understand how \transposition works with enharmony.
In the following, what key should be chosen (instead of D major) in the fourth score for a soon-to-be-created Trumpet in A#?
For the Trumpet in Bb, the piano's C becomes a written D. The interval between C and the note in the instrument's name (Bb) is a major second, as is the interval between the C and the D.
The same thing happens with the horn; C to Eb is a minor third, and so is C to A.
So theoretically in order to write for the trumpet in A# (a diminished third away from C), I think you'd have to use the key of Ebb major (which doesn't exist) as this is a diminished third away from C in the opposite direction.
Hope that helps!
Greg
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