Luc Houtkamp, alto saxophone: The Rule of thumb [version for saxophone and computer] (08.13); recorded Amsterdam 13 January 1993.
Jacques Palinckx, electric guitar: The Rule of thumb [version for electric guitar and computer] (04.48); recorded Amsterdam 11 January 1993.
Luc Houtkamp, tenor saxophone: Vogeltrek [for saxophone, computer and computer controlled piano] (05.29); recorded in Amsterdam 27 January 1993.
Luc Houtkamp, alto saxophone; George Lewis, trombone: 718 (05.47); recorded Nickelsdorf 18 July 1992.
Luc Houtkamp, tenor saxophone: Odd & even [for saxophone and tape] (16.37); recorded Amsterdam 29 January 1988.
Front cover painting (reproduced above) by Rien Monshouwer; cover design by Henry van Kleeff.