RE: metronome-mark-alignment

[Daniel Rosen]

> Fantastic. A minor point though: while the example does compile as it should,
> I also get the following text in the log during the preprocessing stage:
> 
> > Fontconfig warning: ignoring 1033: not a valid language tag
> 
> It doesn't say it's an error or even a warning, but I've never seen it 
> before---
> and, moreover, a search of the Nabble list archive for the string "language
> tag" yields zero results. Any idea what this is?

I have a new problem. If I take away the first instance of \music in each staff 
of my original example, the file fails to compile, and I get this error message:

> ~/example-updated.ly:13:18: Wrong type argument in position 1 (expecting 
> Grob_array): ()

Can you help me with this one?

DR