[non-doc patch request] Re: Bug: hidden notes with tails

[Graham Percival]

In order to fix this bug, I propose that we add
\autoBeamOff   to the definition of \hideNotes, and
\autoBeamOn   to the definition of \unHideNotes.
in   ly/property-init.ly


On 4-Aug-05, at 1:25 AM, Colin Wilding wrote:

> If you hide a note with a 'tail' (i.e. an unbeamed note length 8 or
> higher) then follow it with  visible notes with tails, then the tails
> on the visible notes are hidden.

Nice problem!

After a bit of experimenting, it looks like the problem is the beaming:
if you start a beam on an invisible note, then the whole beam is
invisible.  If you start having visible notes in the middle of the beam,
they won't have any tails, because LilyPond thinks that they're
beamed.

See this example:

\version "2.6.1"
{
  a'4 b'4.^"invis 16th note" \hideNotes c''16 \unHideNotes c''16 b'4
  \autoBeamOff
  a'4 b'4. \hideNotes c''16 \unHideNotes c''16 b'4

  \autoBeamOn
  a'4 b'4.^"invis 32nd note" \hideNotes c''32 \unHideNotes c''32 c'' 
c'' b'4
  \autoBeamOff
  a'4 b'4. \hideNotes c''32 \unHideNotes c'' c'' c'' c'' b'4
}


Cheers,
- Graham