+pl 68
+ - doco: other-packages.pod, lots of lilyliterature.pod
+ - last duration mode now is default.
+ - some OpusTeX stuff.
+ - bf Y2K in convert-mudela
+ - Grand rewrite of Music/Register stuff:
+ * separation of Y and X-elt-groups
+ * Registers: info up: broadcasts, info down: get_xxx_info()
+ * Registers: try_request works from bottom to top of tree.
+ * Score_elem invisible_b_ flag
+ * Junk Staff_column, and find the requests while walking the
+ Voices.
+ * Score_register
+ * Staff_group, Score_request_register.
+ * align key/Meters/bar across staffs
+ * junked Staff, Staff_column, Staff_walker, Complex_walker,
+ Request_column Pulk_voice, Pulk_voices, Walker_registers,
+ Voice_element,
+ Input_score, Input_staff, Input_music and a lot of
+ parserjunk.
+ * mudela: lots of structure changes : now much simpler
+ * generation of pre/postbreak items now in Score_elem with deps.
+
+ - bf: make_patch explanation
+ - bf: make install TeX stuff
+ - new Beam/Stem code (WL)
+ - mudela: . mandatory for REALs
+
+******
+june 3
pl 67
- sketch of Music classes
- General_script_def as baseclass for Text_def and Script_def