One of the tools in a composers tool box when writing music in
Garageband is to change drums so they are running in 1/2 time. Once
in a while you can find drum loops that have a half time version, but
this is rare. And the half time drum loop should "fit" with the full
time loop. Here's what you do... Create a track with your drum loop.
Create a duplicate track of the drum loop, and slide the loop
forwards or backwards creating a double time or syncopated loop!!
Give it a try and always experiment! - svend / www.svend007.com