Hi Urs,
thanks for the improvements to my code! (I tend to stop thinking about
it as soon as it works for my case, which always leaves lots of room for
improvement.)
The only remedy I can see right now would be to deal with this in an
after-line-breaking stencil. From there we could iterate over the whole
system and check the maximum number of actually used layers. The result
should be cached so this process is done only once per system.
However, this won't always work because the context may not have been
pushed sufficiently far down in situations like the attached example.
This exceeds my current understanding of LilyPond coding, I'm afraid.
I've made a number of improvements to your code:
1)
reverseFigures creates a new music expression, from which you later
retrieve the 'elements, which is unnecessary. (I renamed it to parse-
signature
Yes, thank you - I only wanted to "quickly re-use the existing code"
without bothering about possible shortcuts.
2)
The figures do have their durations included, so we can retrieve them
*here* and reuse that information later when generating the
BassFigureEvent for the bass step markup.
Yes, that occurred to me later. However, I think there is still a
problem (I was working on a similar problem when your code arrived):
2a)
Instead of \none I rewrote \scaledeg to accept either a figure
signature or a duration. This gives a nice interface where you can just
specify a duration for an empty figure.
<<
\new Staff { \clef bass c2 d4 e4~ e f2 g4 }
\figures {
\scaledeg 1 <5 3>2
\scaledeg 2 <6>4
\scaledeg 3 2
\scaledeg 4 <6 5> % Here the user would expect to get a duration of
2, but gets 4
\scaledeg 4 <6 5>4
}
>>
The parser does not seem to take notice of durations when they are used
as function parameters. I do not know how to handle this - it comes down
to the question: How to read/write the "current assumed duration" from
the parser?
As for lobbying with the music theory folks:
* They are going to ask for "raised"/"lowered" scale steps. (Using
arrows, flat/sharp etc.) I even used relative solmization syllables
for this in my teching instead of numbers... ("fa with a 642").
* The set of people interested in using this does not scale well with
physical distance from the Freiburg theory department ;-). It's not
as widespread as one might be induced to believe from looking at
their local practice... But maybe it's becoming more common over
time. At least there's plenty of people with a Freiburg education
getting teaching jobs elsewhere.
Best
Lukas
