Using TeX Gyre Schola vs. C059

[Daniel Benjamin Miller]

Right now, the default text fonts in Lilypond are TeX Gyre Schola, which 
is a variant of URW Century Schoolbook. However, there are some issues 
with the fonts, in my view. For instance, look at the tittles of the i 
and j: they have been shrunken and lowered, unlike in all the 
professional versions of the Century Schoolbook design.

I suggest that we switch to the 2.0 release of the URW fonts (Schola is 
based on the 1.0 release). The font is called 'C059' and is available 
here: https://github.com/URWTypeFoundry/Core_35. In comparison with 
Schola, C059 adds monotonic Greek and Cyrillic support (Schola has 
"Greek" but its characters are unusable). The only disadvantage is a 
slightly smaller Latin-Extended glyph supply in C059 vs. Schola.