2 - design macro for penstroke with rounded endings
3 - y-refpoint for rests should be the 4th staffline (gclef: b')
6 * stem-notehead attachments.
16 - small(1/4staff) bold + bold slanted
17 - normal(1/5staff) bold
18 - large(3/4staff) bold
20 - include important spacing dims in fetalog
21 - lilyrules.mf for different rules (lines) ?
23 - hack up GS or the mf-gray font to do round pixels
24 iso. square pixels. (Printers don't do square pixels.)