POLYTEMPO:   here is an easy solution to play POLYTEMPO-textures in OPMO   in every "play-tempo-stream" you can write for 4 instruments... then put it in (progn...  // then choose different tempos and PLAY it 😉 greetings andré   p.s. if you want to do it like CONLON then write a list with tempos/beats in :tempo-curve ... example: "tempoverlauf per BEAT"   ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;