2 - design macro for penstroke with rounded endings
3 - y-refpoint for rests should be the 4th staffline (gclef: b')
17 - move to OpusTeX fonts ? (no!)
18 - include important spacing dims in TFM?
19 - lilyrules.mf for different rules (lines) ?
20 - check out Adobe Sonata/Petrucci font layout. They are the
21 standard for Music fonts
22 - hack up GS to do round pixels iso. square pixels. (Printers
23 don't do square pixels.)