Hello, I am trying to make a song in Garage Band for IOS. I want to use Loops. Now, I got my drum track and My electric piano track. When I go to play what I have been working on, I hear my drum track and I also hear my piano track. But, When I hear the piano track, I only plays for 1 bar and The drum loop keeps on playing. Note: I just want to make a song out of loops. So, Can someone please tell me how to lengthen all of the instrument track in my song? Thanks.