- move to OpusTeX fonts
	- make own font-en-tja{10,11,13,16,20} files
	- opustex/lilypond fonts from the same generic driver files
	- LilyPond fonts should generate TFM spacing info
	- include important spacing dims in TFM
	- lilyrules.mf for different rules (lines) ?
	- check out Adobe Sonata/Petrucci font layout.  They are the
standard for Music fonts
	- rewrite : make a metafont iso font
	- perl script to generate dependencies for mf 
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