\markup placement (Was: Re: collision barline with accidental)

[Juergen Reuter]

Hi all,

while you are at it (I mean, the placement/spacing code, though I am not 
sure if this is anyhow related)...

I noticed that in Manual Sect. 7.7.10.2 ("Gregorian square neumes 
ligatures") the placement of the letters in the neumes table changes from 
almost each version of the lily 2.11.x series to the next release: 
sometimes, the letters appear above the glyph, sometimes below, sometimes 
they are stacked upon each other, sometimes they appear in a horizontal 
row, with these flavors mixing even within the same version of lily...  Is 
this intended behavior?  (N.B.: In lily 2.10.29, the letters are placed 
consistently above the glyphs and in horizontal rows.)

Btw., I do not mind where the letters actually appear, as long as the 
placement is somewhat consistent and it gets clear that each letter is 
associated with a glyph.  Maybe the letters should not be typeset with the 
\markup command, as it is currently done?

Greetings,
Juergen