Re: Issue 795 in lilypond: Beams do not take grace notes into account

[Colin Campbell]

On 11-04-02 05:18 PM, address@hidden wrote:
> Comment #5 on issue 795 by address@hidden: Beams do not take grace 
> notes into account
> http://code.google.com/p/lilypond/issues/detail?id=795
>
> Hey Colin,
>
> I'm not sure if this is a problem - the stem is just covered by the 
> stem of the 8th note.  One can imagine that if the regtest had set the 
> 8th notes lower, the quarter note stem would be subsumed into the 8th 
> note stem.  ie:
>
> quoteMe = \relative c' { fis4 r16  a8.-> b4-\ff c }
>
> \addQuote quoteMe \quoteMe
> original = \relative c'' { c8 d s2 \stemDown a8 fis8 }
>
> <<
>     \new Staff {
>         \set Staff.instrumentName = "quoteMe"
>         \quoteMe
>     }
>     \new Staff {
>         \set Staff.instrumentName = "orig"
>         \original
>     }
>     \new Staff \relative c'' <<
>
>         \set Staff.instrumentName = "orig+quote"
>         \set Staff.quotedEventTypes = #'(note-event articulation-event)
>         \original
>         { s4 \quoteDuring #"quoteMe" { s2. } }
> >>
>
>
> I think this addresses a larger issue, however, of being able to turn 
> on and off certain grobs in the beam-collision-engraver.  This is 
> doable via a modifiable property (ie Beam #'avoid = #'(stem beam 
> note-head clef time-signature)), but that seems like it'd be 
> appropriate for a separate patch.

I'm afraid I'm looking at it from a rather unsophisticated view, Mike: 
the original showed reasonably clearly that there was a quarter note 
sharing a head with one of the eighths, the patched version, by 
lengthening the stem of the beamed notes, hides the quarter note 
completely. An amateur bass singer such as I would not know it was there.

Colin

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