Here is a noisy techno track I made using Eurorack synths. The main synth sound was made by modulating the EXP CV on the AJH synth transistor core VCO with audio level CV from the Bubblesound VCOb. This is a little bit of an experimental track with straightforward drums.

This is a techno music track incorporating some trance elements made using Eurorack synths. I used a Stillson Hammer sequencer. The bass is a bubblesound VCOb going into an SEM20(2) filter with the frequency turned way down and the resonance turned WAY up to make that bubbly sub.