Having had an (off-list) discussion with Chip about transposition, I've
written the following little snippet which would probably fit well in
5.1.2 (manual 2.12.1), if the maintainer would care to add it.
<start>
* When entering a part for a transposing instrument into a variable,
wrap the notes in a "\transpose c natural-pitch {}" (where
"natural-pitch" is the open pitch of the instrument) so that the music
is stored in lily at concert pitch. You can transpose it back again on
output if required, but you might not want to (score in concert pitch,
converting trombone part from treble to bass clef etc) and it's a lot
easier if everything internal to lily is in a consistent pitch.
Also, only ever transpose to/from C. That means that the only other key
you will use is the natural pitch of the instrument - Bf for a Bf
trumpet, Af for an Af clarinet, etc.
<end>
I've noticed we seem to get people on the list every now and then who it
seems play a non-transposing instrument but are asked "can you do this
for so-and-so who plays (let's say) the trumpet", and because they've
never personally experienced a transposing instrument they seem to have
trouble knowing how to cope.
Cheers,
Wol
--
Anthony W. Youngman - address@hidden
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