Re: treble and bass clef simultaneously

[Werner LEMBERG]

>> Can you suggest a (possibly read-only) property or properties that
>> could be easily added to either the `Clef' or `NoteColumn' grob on
>> the C++ side, and which would considerably simplify the code?
> 
> upcoming new features notwithstanding, could you point me to the
> latest version of that nifty workaround, so that I may update the
> existing LSR snippet or (perhaps preferably) post a new item on the
> LSR?

Here is Harm's solution:

  https://lists.gnu.org/archive/html/lilypond-user/2019-03/msg00493.html

and here is the one from Aaron, slightly modified by me:

  https://lists.gnu.org/archive/html/lilypond-user/2019-03/msg00439.html


    Werner