For scores with multiple instruments of various tunings, how do you tell
lilypond to to render midi with "normalized" pitch (everything adjusted
to concert pitch, appropriately) — WITHOUT transposing the visual,
written notes.
E.g., a trumpet part is written a whole tone higher, and you want to
keep it written that way, but, at the same time, you wanna hear your
trumpet part sound in tune with its concurrent piano part.
The way things are right now, one needs to create an additional
lilypond, containing WRITTEN transposition, to get a score like that
sounding right. Or /is/ there are way to do it with a couple of code
directives?
thanks