The following articles may be of interest.
Mostly in Adobe Acrobat .pdf format. Otherwise in HTML.
Scafra Preludes: quick start
Scafra Preludes: the manual
Maybe I Can Have An Everlasting Love
RIG notation and font
Prokofiev's 4th Symphony and me (posing as
Sherlock): the strange case of the dog that didn't
bark, then barked too loud
Berlin Elgar Hendrix
The Improvisation Continuum
Notes for Improvisers
John Cage, Electric Phoenix, and the Cage Mafia backlash
John Cage in rehearsal with Electric Phoenix
Frederic Rzewski: Nonsequiturs