Re: state-of-the-art multi-instrumental/transposing mechanism

[Kieren MacMillan]

Hi Urs,

> it's too late for me right now to properly understand the issue

1. Thanks for responding anyway!  =)
2. Looks like you do understand most of the issue.

> but I wanted to direct you to Jan-Peter's
> https://github.com/openlilylib/snippets/tree/master/editorial-tools/auto-transpose,
> not knowing if it's even *related* to your question.

It is!

In the modified snippet (below), I use \autotranspose. It works great EXCEPT 
the [abstracted] key signature part. If we could just figure out how to have 
the key signature properly displayed in the transposed part, I think we’d be 
most of the way to a complete solution (though admittedly I don’t know the 
internals of this engraver yet, so there may be other issues it doesn’t or 
can’t handle.

Thanks!
Kieren.

%%%  SNIPPET BEGINS
\version "2.19.56"
\include "openlilylib/snippets/editorial-tools/auto-transpose/definitions.ily"

\paper { line-width = 6\in }

flute = {
    \set Staff.instrumentName = "Flute"
    \set Staff.shortInstrumentName = "Fl."
    \transposition c'
}
altoflute = {
    \set Staff.instrumentName = "Alto Flute"
    \set Staff.shortInstrumentName = "A. Fl."
    \transposition g
}
toF = \markup "take flute"
toAF = \markup "take alto flute"

global = {
    \key c \major s1 \break
    \key d \major s1 \break
    \key e \major s1 \break
}

flutepart = {
    \flute
    a'2 r^\toAF
    \altoflute
    a'2 r^\toF
    \flute
    a'2 r
}

\markup \bold "C score:"
\score {
    \new Staff << \global \flutepart >>
}

\markup \vspace #4
\markup \bold "Transposed score/part (incorrect):"
\score {
    \new Staff \with \autoTranspose << \global \flutepart >>
}
%%%  SNIPPET BEGINS

________________________________

Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: address@hidden