Monk Panteleimon wrote:
I have a little definition (here called "chant") which, together
with my standard \layout
block let's me write unmetred music ad infinitum without having to
(explicitly) add
invisible barlines whenever I want the line to break. This
potentially really useful, since otherwise I have to recompile my .ly's
often, decide where the break is best and put it there.
There are a couple of problems which keep me adding the explicit \breaks
amyway, however, and if anyone could help work them out I would be so
happy that I would submit my definition to the LSR without delay.
(ahem..) The definition:
%%%%%
chant = {
\set Score.defaultBarType = ""
\override Score.SpacingSpanner #'strict-note-spacing = ##t
\set Score.barAlways = ##t
}
% and in the layout block (but this part's not at issue) :
\layout { ragged-last = ##t
\context { \Staff
\remove "Time_signature_engraver"
\remove "Bar_number_engraver" }
}
%%%%%
The problems with the "chant" definition are 2, so here's the probably
harder one first:
I want the linebreaks to be just slightly more picky, something like
what happens with Forbid_linebreak_engraver (sic?) only referring to
what the adjacent note values around the break, so that:
1. Lines don't break between notes of duration shorter than a
quarter-note,
e.g. between a dotted-quarter and an eighth and
One solution is to skip the barAlways setting, keep the
time signature engraver but remove the printing of the time
signatures and specify a time signature corresponding to
where you can accept to have line breaks. For example,
if you can accept to have a line break after each full quarter
note, but not shorter, then you specify the time signature
\time 1/4. What I just described in words corresponds to
%%%%%
chant = {
\set Score.defaultBarType = ""
\override Score.SpacingSpanner #'strict-note-spacing = ##t
}
% and in the layout block (but this part's not at issue) :
\layout { ragged-last = ##t
\context { \Staff
\override TimeSignature #'stencil = ##f
\remove "Bar_number_engraver" }
}
%%%%%
2. Lines don't break in the middle of a melisma whose whole duration is
less than one whole-note.
Possible?
Harder, except if these melismas always start on a time
instant corresponding to a full number of whole-notes.
In that case, just take my previous answer and use
\time 4/4
N.B. I am aware that I could just set the t.signature for some
denominator higher than 8 (rather than doing BarAlways)
The problem with this is that Znamenny Chant is so metrically
irregular and syncopated that I would be getting bar-overflow all the
time. It wouldn't fit even into a 1/4 t.signature.
Oops, I didn't see this remark until now.
/Mats
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