* your patch makes a new spanner for every time_step it seems.
Only make one if the name changes.
* ly_scm2string() doesn't work for markup. Use scm_is_equal
I don't think that I make a new spanner every time_step. I use
ly_scm2string to avoid such a behaviour.
But you are right I must use scm_is_equal instead. Or did I miss
something ?
* you will need a vector<Grob> for staves. You could have more
than 1.
I don't understand. Each engraver is linked to only one staff. Why do
I need
a vector now whereas I don't need one before ?
Christophe
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