I think some of your conclusions are wrong. As the following example shows,
an E is always transposed to a F#, regardless of the key specified if
you use
\transpose bes c'
\version "2.10.0"
m = \relative c'{ bes b c cis des d dis es e f fis ges g gis as a ais bes }
\transpose bes c' \m
mInBes = \relative c'{\key bes \major bes b c cis des d dis es e f fis
ges g gis as a ais bes }
\transpose bes c' \m
mInC = \relative c'{\key c \major bes b c cis des d dis es e f fis ges g
gis as a ais bes }
\transpose bes c' \mInC
Which accidentals are shown and what key signature is shown depends on
the original key signature. As you have noted, no key signature is
shown in the transposed part if non is specified in the non-transposed
music.
If you want an e to be transposed into an Gb, you should instead use
\transpose ais c'
but you probably don't want the double flats you get on some other notes.
As an alternative, you can search for "Smart transpose" in the LSR,
http://lsr.dsi.unimi.it/
/Mats
Nick Didkovsky wrote:
Hello Lilypond users
I want to extract a Bb trumpet part from a concert score. The score is
not really in a key signature (atonal music, not c major), so I do not
want a key signature in the extracted part.
I see that as long as no key is specified in the music file, then no
key signature is introduced in the transposed part.
However, the transposed part then mixes sharps and flats despite the
command which according to 6.1.8 in the docs ought to print only flats.
\transpose bes c' \new Staff \jjfStaffAA
For example E is transposed to F# instead of Gb
If I introduce "\key c \major" to the music file then the transposed
part is spelled using only flats (desired), but a key signature of D
major is introduced (not desired)
It looks like suppressing the key signature makes Lilypond spell with
sharps all those transposed notes that would otherwise be sharp in the
D major key signature.
Can someone advise how I can both control accidental spelling and
suppress key signatures in transposed parts?
Thank-you
Nick Didkovsky
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--
=============================================
Mats Bengtsson
Signal Processing
Signals, Sensors and Systems
Royal Institute of Technology
SE-100 44 STOCKHOLM
Sweden
Phone: (+46) 8 790 8463
Fax: (+46) 8 790 7260
Email: [EMAIL PROTECTED]
WWW: http://www.s3.kth.se/~mabe
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