I think I may have hit one by accident...one of the channels in my song is playing a little flat, maybe 1/4 tone off...I can tell because the track is doubled and I hear a weird de-tune effect from it...If I clear notes and place new ones in the same channel, they are also flat....and it carries across patterns, any note in that channel is a little flat...
and it doesn't happen every time I load the song. Weird, eh? I also noticed a few weird events on that channel, like volume events by themselves, or a note playing sample #1 on the zero octave. The song seems to play normally on milky tracker.
Hey! Tracker effects are indeed on the way. Many of them are already implemented in the player engine but not accessible from the GUI yet. I'm always happy about testers! Just PM me your e-mail address and I'll sign you up!