This project resonated with me in many ways, I've been part of various open source communities for nearly 20 years now, and my musical style is glimpses of hope in desperate situations
Here's my piece, it kinda ran over the desired time, but my "one live take" style kinda does that.
and here's a video of me performing it, with some edited inserts so you can see more clearly what's going on, you can play spot the continuity errors if you want.
The left tape contains two tracks of shopping carts being smashed together, put through delay and reverbs. The right tape has a synth note on each track: B, F#, D, D#. Track starts in Bminor, has two guitar distorted, reverby guitar loops running, and some extra noises and glitches are added from various pedals and sent through the main pedal board as well (it's on the mixer Aux send)
Halfway through the D track is faded out, and the D# is added to change the key to Bmajor, a new, more hopeful guitar line is added and a field recording of kids playing (field) hockey is added. The reverb decay of the guitar line is jacked up to full and allowed to decay naturally at the end.