address@hidden writes:
OK, pretty sure this is a bug in 2.1.35 (as opposed to StemUp :P).
If the Devnull context is supposed to discard all musical info given
to
it, it doesn't.
Assume myMusic = \notes {...} has polyphony on a single staff in it.
Naturally, calling \myMusic works fine. BUT, doing this:
try this
****************
\header {
texidoc = "A second staff can be aligned to
a fragment (say, a cadenza), using a Scheme function: the
function creates a skip of the same length as the cadenza. "
}
\version "2.1.37"
cadenza = \notes \relative c' {
c4 d8 << { e f g } \\ { d4. } >>
g4 f2 g4 g
}
#(define (skip-of-length mus)
"Create a skip of exactle the same length as MUS."
(let*
((skip
(make-music
'SkipEvent
'duration (ly:make-duration 0 0))))
(make-event-chord (list (ly:music-compress skip (ly:music-length
mus))))
))
#(define (mmrest-of-length mus)
"Create a mmrest of exactly the same length as MUS."
(let*
((skip
(make-multi-measure-rest
(ly:make-duration 0 0) '() )))
(ly:music-compress skip (ly:music-length mus))
skip
))
\score {
\notes
\relative c' \new GrandStaff <<
\new Staff { \cadenza c4 \bar "|." }
\new Staff {
#(ly:export (mmrest-of-length cadenza))
c4 \bar "|." }
\paper {}
}
--
Han-Wen Nienhuys | address@hidden |
http://www.xs4all.nl/~hanwen