The sound source is the bell-like thingie in the image. Struck a few times with soft and medium strikers. Recorded into buffers which are played back at 4 different speed/pitches (2 2 buffers, so 8 pitches). As the pitch change is produced by playing the buffer at different speeds, the also changes the playback times, hence the different rhythms that are generated. The output of the playback modules goes into 3 time stretchers (2 sec buffers each); record in each buffer is triggered according to the level of the incoming sounds. I ran the patch for 5 minutes twice, and then mixed the results in Mixbus, with minimal additional processing.
Also, in case you’re interested, here’s a reply to 337is on Soundcloud about about which is the original pitch played in the piece -
The closest would be the tiny tinkly sounds you can hear in the background through the middle of the track, though they are transposed -1, 0, and +1. The first bell you hear is 2 8ves down. There are 2 of these “pitch play” modules in the patch, and 2 passes. The first pass (soft beater) is C0, G0,C1,G1 and C1, G1, Bb1 & G1 (remember that these are _transpositions, not pitches), and the second pass (hard beater) is C1, G1, C2, G2 & C1, B2,C3,C#3 (where C3 is the original pitch - i.e. non-transposed)