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List:       lilypond-user
Subject:    Re: Cello fingering indications
From:       Colin Campbell <cpkc () shaw ! ca>
Date:       2011-10-31 2:50:09
Message-ID: 4EAE0CE1.2090309 () shaw ! ca
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On 11-10-27 09:21 PM, Colin Campbell wrote:
> My cello teacher is quite insistent that I get accustomed to keeping 
> fingers in place while I'm going between strings, so I'm asking about 
> the best way to code that in LP.  The only thing I've found is 
> repeatCommands, as in this:
>
> %<------------------------------------%<
> \version "2.15"
> celloII = \relative c {
>   \key d \major
>   \clef bass
>     \time 4/4
>
>    %13
>   d8-0 \set Score.repeatCommands = #'((volta "3"))
>    fis-3 a-0 d-4 \set Score.repeatCommands = #'((volta #f))
>    a,-1 \set Score.repeatCommands = #'((volta "1"))  e'-1 a-0 cis-3
>     \set Score.repeatCommands = #'((volta #f))
> }
>
> \score {
>   \celloII
> \layout {}
> }
> %<------------------------------------%<
>
> Surely I'm missing something less brutal than that!  My instructor 
> wants to make the held fingering explicit in many, many bars, and as 
> long as he's waving the pencil, I'm unconcerned.  When I'm running the 
> exercise through LP to get it larger and cleaner, I'm seriously 
> concerned, and very much open to suggestions!
>


Further Googling gives http://lsr.dsi.unimi.it/LSR/Snippet?id=616 :
%<-------------------------------------------

stringNumberSpanner =
#(define-music-function (parser location StringNumber) (string?)
   #{
     \override TextSpanner #'style = #'solid
     \override TextSpanner #'font-size = #-5
     \override TextSpanner #'(bound-details left stencil-align-dir-y) = #CENTER
     \override TextSpanner #'(bound-details left text) = \markup { \circle \number $StringNumber }
   #})


\relative c {
   \clef "treble_8"
   \stringNumberSpanner "5"
   \textSpannerDown
   a8\startTextSpan
   b c d e f\stopTextSpan
   \stringNumberSpanner "4"
   g\startTextSpan a
   bes4 a g2\stopTextSpan
}

%<-------------------------------------------

which is closer in appearance, but I haven't the Scheme fu to modify the 
stringNumberSpanner function to incorporate the startTextSpan and number 
of notes. Ideally, one would wind up with something like a8\fSpan {"5" 
4} which would extend a line for 4 of the note value of the starting note.

Maybe I'll have a chance to RTFM about Extending, but for the moment, 
desperately in need of practice as I am, the analog pencil will have to 
suffice!

Cheers,
Colin

-- 
I've learned that you shouldn't go through life with a catcher's mitt on both hands.
You need to be able to throw something back.
-Maya Angelou, poet (1928- )



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