A synthesizer played by pumping energy into it: https://www.youtube.com/watch?v=...

		diydsp on Aug 7, 2023 \| parent \| context \| favorite \| on: Ask HN: What's the coolest physical thing you've m... A synthesizer played by pumping energy into it: https://www.youtube.com/watch?v=huYJa2Du57g Because the volume should track how hard you play and stopping to change/recharge batteries takes away the fun!