Garageband 10--how to delete drummer track...
...without deleting a region. I have a new MacBook Pro (mid-2015) and the new GB. I was working out a song on a piano track and was having trouble hearing the metronome when adding a rhythm track, so I added a drummer track before defining regions on the arrangement track. When I later defined appropriate regions on the arrangement track I deleted the drummer but it took the original piano track along with it, apparently as a region.
So the question is: how do you delete a drummer track without deleting anything else?
Thanks!
MacBook Pro (Retina, 15-inch, Mid 2015), OS X Yosemite (10.10.4)