Try doing pitched shifted ghost notes, using loop mode. The loop length and delay time can add strange grooves. Also try using dissonant intervals like flatted 2nd/5ths for weirdness. Try also, in conjunction with sugar bytes looperator, for even more variety. Also, try Audiomatic....etc......
This video helped as a spring board, to get me down the rabbit hole:
You can spend hours doing this by just loading up different loops, other fx, and messing with parameters.
Fun times.