@hitch-hiker

I don't know; I never experienced that problem. I just checked if running an audio task in the background would cause problems, but it didn't.

What version of AHI-Noteplayer are you using? I'm using 1.08. Secondly, make sure you disable all other genies (or even better: don't load them at startup -> move them to the geniestore dir) because delitracker gives priority to the 14bitgenie. Are you using the full delitracker package from aminet? If not, the fault may lie in outdated tfmx replayers. The aminet distribution contains version 2.29 of the TFMX replayer, wich recognises every tfmx I trow at it -> also make sure you move all other tfmx replayers to the playerstore dir).

Hope this helps!