Tracks 1 and 2 were released on LP in 1984; track 3 has been added to them for the release of this CD.
This recording of Pulsers, composed in 1976, incorporates an improvised tape by Takehisa Kosugi with his "electronic violin", made in collaboration with this work.
Untitled, composed in 1972, was designed for simultaneous performance with John Cage's vocalization of "Mesostics re Merce Cunningham". The work was revived in 1982, and performed with improvised vocals by Takehisa Kosugi.
Phonemes was commissioned by the Merce Cunningham Dance Company for Cunningham's dance "Channels/Inserts", a work made both as a "filmdance" and for the stage. The first stage performance took place at City Center Theater on March 24, 1981.