An important question is : ``can MusicTEX transpose a score ?''.
The answer is now 99.5 % yes. If fact, there is an internal register
named \transpose the default value of which is zero, but it may be
set to any positive of negative reasonable value. Then, it offsets all
symbols pitched with letter symbols by that number of pitch steps. However,
it will neither change the signature nor the local accidentals, and if – for
example – you transpose by 1 pitch a piece written in C, MusicTEX will
not know whether you want it in D
, in D or in D
. This might
become tricky if accidentals occur within the piece, which might have to be
converted into flats, naturals, sharps or double sharps, depending on the new
choosen signature. To circumvent this trouble, relative accidentals
have been implemented, the actual output of which depends of the pitch of
this accidental and of the current signature.