Hello. Are vdelay and diskin working fine for you? I can't get a variable delay with vdelay/vdelay3 (I'm using delayr+deltap3+delayw instead) and got an instrument that doesn't play if used after say 15 secs from the beginning of the file, but works correctly if used before. Maurizio Umberto Puxeddu "p.s. I did not appreciate that you forwarded our private email to The Csound mailing list a while back. Please do not post any part of this private email to the mailing list."