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Re: Double-flats used by Lilypond after transpose
From: |
Mark Knoop |
Subject: |
Re: Double-flats used by Lilypond after transpose |
Date: |
Wed, 01 Aug 2007 15:18:28 +0100 |
User-agent: |
Thunderbird 2.0.0.5 (X11/20070719) |
Toine Schreurs wrote:
> The transposition of the instrument does not depend on the key of the
> music. On a B-flat sax a written C sounds as a B-flat. That's all
> the information you need.
>
> So use \transpose bf c' {the music}
>
> And indeed, key E-major goes to F-sharp-major. The original
> transposition from E-major to G-flat-major implies an A-sharp
> saxophone.
At the root of this is the possibility that there should/could be two
modes of transpose.
1) "Tonal" transpose: which would use double{flats,sharps} when
appropriate. e.g. (as in this case) a G in E major is a flattened third,
so when transposed to G-flat major *should* become a B-doubleflat.
2) "Atonal" transpose: which would favour the simplest spelling. e.g. G
transposed up a tone would *always* become A.
--
Mark Knoop