Then you need to look into audio to midi function in Logic. You can make a midi track from any source audio. Then make a groove template from that. As for re-timing audio to that groove template, I'm going to speculate...

There's also function in Logic called retime or regroove in the factory area of the sample window. I'm betting there's probably some way to do it.

Otherwise my idea of chopping up the audio is correct. From there you would use the groove template made from the audio to midi stuff, and apply that to the chopped up regions.

I guess I'd have to see/hear beat detective in action. But I don't miss what I don't know.

As for the midi thing of 128 levels. I can't believe the industry hasn't dropped that standard period. It's time that they treat midi as the legacy it was and update to modern technology in terms of the 128 thing. It's time that there were 1024 steps instead of 128. But that's just me.

Jody Whitesides
A Funky Audio Lap Dance For Your Ears!
www.jodywhitesides.com