On Jun 28, 2011, at 12:07 PM, Brian Lenth wrote:
> Hello everybody,
>
> I'm attempting to create a score that uses simultaneous multiple tempi, at a
> ratio of 5:7. As a test, I made this (see code below). Basically it uses the
> ridiculous time signature of 42/4, with barlines inserted to create an
> artificial independent meter for each staff. It looks beautiful, but the
> problem is: put in shorter note values than these dotted quarters (sixteenths
> etc) and there isn't enough room on the line to render the music; it all just
> runs off the page, in other words, it doesn't want to break the line in
> mid-bar (as I'm using ridiculously long measures to simulate polytempi). I've
> read everything the Notation Reference has to offer about forcing line
> breaks. But for some reason it doesn't let me break the line during active
> note events (removing Forbid_line_break_engraver only seems to work across
> "actual" automatic barlines, not ones I've put in). Does anybody have any
> advice here? Is there a way to get more control over breaking my lines? Or
> better yet, is there a way to do these kinds of polytempi without using
> 8497/8 time?
>
> Thanks,
> brian
>
>
> PartA = \new Voice \relative c'' {
> \clef treble
> \time 42/4
> \set Staff.instrumentName = #"Part A "
> \set Staff.timeSignatureFraction = #'(12 . 8)
> \scaleDurations #'(7 . 5) {
> c4.^\markup { \note #"4." #1 " = 60" } c c c \bar "|"
> c c c c \bar "|"
> c c c c \bar "|"
> c c c c \bar "|"
> c c c c
> }
> }
> PartB = \new Voice \with {
> \remove Forbid_line_break_engraver
> } \relative c'' {
> \clef treble
> \set Staff.instrumentName = #"Part B "
> \time 42/4
> \set Staff.timeSignatureFraction = #'(12 . 8)
> \override Beam #'breakable = ##t
>
> g4.^\markup { \note #"4." #1 " = 84" } g g g \bar "|"
> g g g g \bar "|"
> g g g g \bar "|"
> g g g g \bar "|"
> g g g g \bar "|"
> g g g g \bar "|"
> g g g g
> }
> \score {
> <<
> \new Staff \PartA
> \new Staff \PartB
> >>
> }
> \layout {
> \context {
> \Score
> \remove "Timing_translator"
> \remove "Default_bar_line_engraver"
> }
> \context {
> \Staff
> \consists "Timing_translator"
> \consists "Default_bar_line_engraver"
> }
> \context {
> \Voice
> \remove "Forbid_line_break_engraver"
> }
> }
You'd have to fiddle with the length of the material in the variable `bars',
but this sorta thing does the trick :
bars = {\repeat unfold 150 { s8 \bar "" } }
PartA = \new Voice \relative c'' {
\clef treble
\time 42/4
\set Staff.instrumentName = #"Part A "
\set Staff.timeSignatureFraction = #'(12 . 8)
\scaleDurations #'(7 . 5) {
c4.^\markup { \note #"4." #1 " = 60" } \repeat unfold 6 { c8 } \repeat
unfold 6 { c8 } \repeat unfold 6 { c8 } \bar "|"
\repeat unfold 6 { c8 } \repeat unfold 6 { c8 } \repeat unfold 6 { c8 }
\repeat unfold 6 { c8 } \bar "|"
\repeat unfold 6 { c8 } \repeat unfold 6 { c8 } \repeat unfold 6 { c8 }
\repeat unfold 6 { c8 } \bar "|"
\repeat unfold 6 { c8 } \repeat unfold 6 { c8 } \repeat unfold 6 { c8 }
\repeat unfold 6 { c8 } \bar "|"
\repeat unfold 6 { c8 } \repeat unfold 6 { c8 } \repeat unfold 6 { c8 } c4.
}
}
PartB = \new Voice \with {
\remove Forbid_line_break_engraver
} \relative c'' {
\clef treble
\set Staff.instrumentName = #"Part B "
\time 42/4
\set Staff.timeSignatureFraction = #'(12 . 8)
\override Beam #'breakable = ##t
g4.^\markup { \note #"4." #1 " = 84" } \repeat unfold 6 { g8 } \repeat unfold
6 { g8 } \repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 }
\repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 }
\repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 }
\repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 }
\repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 }
\repeat unfold 6 { g8 } \bar "|"
\repeat unfold 6 { g8 } \repeat unfold 6 { g8 } \repeat unfold 6 { g8 } g4.
}
\score {
<<
\new Staff << \PartA \bars >>
\new Staff \PartB
>>
}
\layout {
\context {
\Score
\remove "Timing_translator"
\remove "Default_bar_line_engraver"
}
\context {
\Staff
\consists "Timing_translator"
\consists "Default_bar_line_engraver"
}
\context {
\Voice
\remove "Forbid_line_break_engraver"
}
}
Cheers,
MS
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