In fact it was done the other way around. The rhythm was created in the edit first by Haanstra and the music was added only after that.
Wow. One watch and immediately soared to the top of my favourite short films list. Absolutely impeccable. The synchronization of the music with the film is genius. Fucking genius!
jazzmen in glassmaking. what an apt choice of music, synchronizing the gestures of glass magicians with those of the scoring musicians.