Re: A (short) explanation of some internals

[Carl Sorensen]

On 4/7/20, 11:41 AM, "lilypond-devel on behalf of Francisco Vila" 
<lilypond-devel-bounces+c_sorensen=address@hidden on behalf of address@hidden> 
wrote:

    Hello,
    
    I cannot find a simple explanation to this common behavior of time 
    signatures and key signatures in simultanepus staves.
    
       "Time signatures entered in one staff affect all other staves by 
    default. On the other hand, the key signature of one staff does not 
    affect other staves. This different default behavior is because scores 
    with transposing instruments are more common than polyrhythmic scores. "
    
    I have searched a lot about contexts and engravers but I haven't found 
    what's the mechanism this relies on, or where is it coded in the sources.

It's because the Timing_translator is in the Score  context, IIUC.

http://lilypond.org/doc/v2.20/Documentation/notation/special-rhythmic-concerns#time-administration

See also Polymetric notation under

http://lilypond.org/doc/v2.20/Documentation/notation/displaying-rhythms#unmetered-music

specifically Different time signatures with unequal-length measures.

 

Carl

    
    -- 
    Francisco Vila, Ph.D. - Badajoz (Spain)
    paconet.org , lilypond.es