this is without post loop manipulation
1) use feedback to make the loop attenuate
2) add to the loop as things fade
3) make the loop xtra long so people forget what's there
4) use silence
5) do something interesting over the loop so that attention will be drawn away from it
6) add different timbre to the loop
7) completely change the loop as it fades and then bring it back again
8) wear a tin foil hat
9) stop the loop and bring it back in after some "real" time playing
10) have asyncronious (sp) loops so that they evolve by themselves
11) play chromatically so there is no "KEY"
post loop manipulation
1) add filters etc.
2) have the loop move within the stereo field
3) detune detune detune
4) reverse direction
5) speed up or slow down loop (key will change if that's important)
6) a loop in the electrix mo-fx goes nuts when you hit the sync or p-pong button
7) give all listeners tin foil hats