Add Makefile.
Modify Makefile to keep source on clean.
Add voice melody.
Add lyrics.
Add left hand music.
Add right hand music.
Tweak lyrics.
Add adjustments to lyrics alignment.
Simplify target names.
Closer accidentals on system 3.
Lyrics alignment and more.

Also Dynamics context between piano staves and redefinition
of Lyrics contexts.
Closer accidentals on system 2.
Reduce lyrics vertical spacing.
Cresc. above staff.
Simplify alignLyrics.
Tweak beams.
Vertical spacing tweaking.
Spacing tweaking to fit Letter paper.