Re: drumstaff vs rhythmicstaff

[Janek Warchoł]

2013/11/29 David Kastrup <address@hidden>:
> Maybe you should try making your bug reports not riddles.  The main
> visible difference is that DrumStaff has a drum clef, so "Shouldn't
> these two yield identical results?" is very likely _not_ to focus the
> attention on where you want it.

Well, in my opinion both differences were equally visible.
Nevermind.

> For RhythmicStaff, the bar lines are explicitly designed to match those
> of a five-line staff.

I see the override in ly/engraver-init.ly, and i tracked the code back
to its first appearance 12 years ago:

commit 1539b48e9bd7cd7698e602dc3d3dbe74a6567a49
Author: Han-Wen Nienhuys <address@hidden>
Date:   Sat Sep 8 20:11:09 2001 +0200

    release: 1.5.9

but i haven't found any rationale _why_ rhythmic staff barlines should
be so long.

> In contrast, DrumStaff has normal bar lines matching the system, and
> linecounts of 1 and smaller lead to the fallback of 3-line system
> dimensions.
>
> Personally, I find the RhythmicStaff bar lines a bit excessive.  But
> changing them would be _quite_ an incompatible change.

Hmm.  I think we should change it.  The default behaviour (i.e.
ensuring that the barline is at least 2 ss long) seems perfect to me.

Janek