Cleveland Chamber Symphony. Recorded in Waetjen Hall, Cleveland, Ohio (USA), September 24, 1992.

The Ineluctable Modality. Recorded live July 8, 1970 at Foellinger Great Hall, Krannert Center for the Performing Arts, Urbana, Illinois (USA).

The University of Illinois Contemporary Chamber Players, Edwin London (conductor). Recorded at Smith Music Hall, the University of Illinois (USA), in 1976.

The Ineluctable Modality. Recorded live May 9, 1969 at Foellinger Great Hall, Krannert Center for the Performing Arts, Urbana, Illinois (USA).

John Fonville (microtonal flutes), Steven Butters (microtonal metals). Recorded October 5, 1995 at Foellinger Great Hall, Krannert Center for the Performing Arts, Urbana, Illinois (USA).

TONE ROAD RAMBLERS: John Fonville (flute), Eric Mandat (clarinet), Ray Sasaki (trumpet), Morgan Powell and Jim Staley (trombones), Steven Butters (percussion). Recorded October 5, 1995 at Foellinger Great Hall, Krannert Center for the Performing Arts, Urbana, Illinois (USA).