I honestly have no idea, I love the chord progression I have, but using that as the chorus would be too expected you know?

Interesting question about repetition. I like techno and minimal, genres that are all about repetition but... the repetition isn't static.

Although a groove, a certain pattern is repeated, you sould add variation with filters, envelopes, adding white noise,...

Someone refers to Richie Hawtin (I love his music) and yes, it's all about repetition but don't be deceived, the movement in his music is always dare. Repetition without movement is boring, no matter which great artist created it. The art is creating something that 'feels' repetitive but in fact it isn't.

Th devil is in the details; automation of the cutoff point of a hihat sample will not be noticed by many listeners but it's stuff like that, that aks you go 'It's repetitive but not boring, how come my music isn't as interesting as that?'

Best advice I can give; create a groove and take a good look at the knobs of your synth, imagine which functions you could automate. Basically if you are creating minimal music and there isn't any automation going on, that's not a good sign. People always expect variation. Some kind of predictable change.

Richie Hawtin's music isn't about surprise but movement is there, always.

soundcloud track check is a chrome extension that tells you the key and bpm of a track (100% accurate)