Re: error: cannot find music object: OldLyricCombineMusic

[Mats Bengtsson]

Quoting Graham Percival <address@hidden>:

> William Daffer wrote:
> > Brand new installation of lilypond 2.11.26 for Mac being run on 
> > something which has already been successfully processed by a 
> > previous version of LilyPond

You did not say which previous version of LilyPond and you didn't tell 
if you had updated the syntax to correspond to your new LilyPond 
version. However, it seems from the error message that
the file originally was written for an old (2.2 or older) version of 
LilyPond, where the \addlyrics command worked completely differently. 
To temporarily keep backward compatibility, the old functionality
was kept as a command \oldaddlyrics and the convert-ly utility
automatically replaced all occasions of \addlyrics by \oldaddlyrics
in the conversion step for version 2.3.10.
Now it seems that this obsolete function has been half way removed in 
some recent version. If this was intentional, then the definition
of \oldaddlyrics in ly/music-functions-init.ly should also be removed
and preferably, convert-ly should at least detect if \oldaddlyrics is 
used and tell the user to manually replace it by one of the new
constructs \lyricsto or \addlyrics (which works differently than the 
old \addlyrics command).

  /Mats