Previously released as a compact disc.
Recorded at Landgasthof, Riehen, Switzerland, Oct. 1989 (4th work), Dec. 1989 (2nd), Sept. 1991 (1st), and at Doopsgezinde Gemeente Kerk, Haarlem, Holland, Feb. 1990 (3rd).
Electronic reproduction. Alexandria, VA : Alexander Street Press, 2011. (Classical music library). Available via World Wide Web.