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Re: Another Figured Bass problem
From: |
Robert Blackstone |
Subject: |
Re: Another Figured Bass problem |
Date: |
Tue, 1 May 2018 13:05:49 +0200 |
Hi Harm,
Thank you for this enormous collection of possibilities and code for displaying
BC-figures.
I may not live long enough to put all of it in practice but for my present
purpose it is more than sufficient.
On the topic of Figured Bass in LilyPond I still have some other desires, to be
formulated in a new thread (after I have convinced myself that I won't find it
somewhere in the documentation)
Thanks again,
Best regards,
Robert
On 30 Apr 2018, at 23:09 , Thomas Morley <address@hidden> wrote:
> 2018-04-30 12:51 GMT+02:00 Torsten Hämmerle <address@hidden>:
>> Hi Robert,
>>
>> How about simply flipping the stacking direction?
>>
>> \override BassFigureAlignment.stacking-dir = #UP
>>
>> That way, the bass figures will be piled up from bottom to top.
>> Caveat: the first figure entered will be the lowest.
>>
>> %%%%
>> <<
>> { 4 4 4 4 4 4 }
>> \figures {
>> \override BassFigureAlignment.stacking-dir = #UP
>> <_!> <3+ 6> <4> <4 5> <3+> <_+>
>> }
>>>>
>> %%%%
>>
>> HTH,
>> Torsten
>
>
> I looked for a way not to change the input order, but still benefit
> from upwards stacking-dir.
>
> Coming up with the code below.
> For test-cases I used some of our reg-tests in a modified manner.
>
> figured-bass-continuation-center.ly looks even better, imho.
> figured-bass.ly is surely not meant to demonstrate real live input,
> though, I add it as well, demonstrating bracketing still works.
>
> \version "2.19.81"
>
> reverseEventChordsElements =
> #(define-music-function (mus)(ly:music?)
> (music-map
> (lambda (m)
> (if (music-is-of-type? m 'event-chord)
> (let ((ev-chrd-elts (ly:music-property m 'elements)))
> (ly:music-set-property! m 'elements
> (reverse
> (map
> (lambda (e)
> (cond ((and (eq? #t (ly:music-property e 'bracket-start))
> (eq? #t (ly:music-property e 'bracket-stop)))
> '())
> ((eq? #t (ly:music-property e 'bracket-start))
> (begin
> (ly:music-set-property! e 'bracket-start '())
> (ly:music-set-property! e 'bracket-stop #t)))
> ((eq? #t (ly:music-property e 'bracket-stop))
> (begin
> (ly:music-set-property! e 'bracket-stop '())
> (ly:music-set-property! e 'bracket-start #t))))
> e)
> ev-chrd-elts)))
> m)
> m))
> mus))
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %% EXAMPLES
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> \paper { indent = 30 }
>
> \layout {
> \context {
> \FiguredBass
> \override BassFigureAlignment.stacking-dir = #UP
> }
> }
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %% figured-bass-continuation-center.ly
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> mI =
> \relative {
> c'8 c b b a a b b
> c c b b
> }
>
> figI =
> \figuremode {
> \set useBassFigureExtenders = ##t
> \set figuredBassCenterContinuations = ##t
> <6+ 4 3>4 <6 4 3> r
> <6+ 4 3>4 <6 4 3> <4 3+> r
> }
>
> <<
> \new Staff
> \with { instrumentName = "default figures" }
> \mI
>
> \new FiguredBass
> \with { \revert BassFigureAlignment.stacking-dir }
> \figI
>
> \new Staff
> \with { instrumentName = "tweaked figures" }
> \mI
>
> \new FiguredBass
> \reverseEventChordsElements
> \figI
>>>
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> %% figured-bass.ly
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> mII = {
> \clef bass
> c 4 c c c
> c 4 c c c
> }
>
> figII =
> \figuremode {
> <3 [5 7]>
> <3\+ [5/] 7/ [9 11]>
> <3+ 5- 7!>
> <3 _! 5 _- 7>
> <3 _ 5 _ 7>
> <3 6/ >
> <3 6\\ >
> <"V7" ["bla" 6] \markup{ \musicglyph "rests.2"} >
> }
>
> <<
> \new Staff
> \with { instrumentName = "default figures" }
> \mII
>
> \new FiguredBass
> \with { \revert BassFigureAlignment.stacking-dir }
> \figII
>
> \new Staff
> \with { instrumentName = "tweaked figures" }
> \mII
>
> \new FiguredBass
> \reverseEventChordsElements
> \figII
>>>
>
> Cheers,
> Harm
>
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- Re: Another Figured Bass problem,
Robert Blackstone <=