PCBWay on Instagram: “DIY Groovebox / Synth / Sequencer with 6 OP FM, VA, 2x16 MIDI Channels and 8 voice Chromatic Sampling, based on a Teensy 4.1 in a tiny…”
PJRC (Teensy) Forum
Teensy 4.1 sequencer - Random - MOD Audio Forum
Teensy 3.1 + AudioBoard + Sequencer (No midi - real audio from sd card) - YouTube