raspberry pi + monotron + puredata= Monotron superchord! - YouTube
Amazon.com: BEACN Mix Create Dark USB C Windows Audio Mixer with 5” Color Display, 4 Button knob Paging, Audio Routing, submixes, Mute Modes, for Content Creators, Streaming, Gaming, Twitch, YouTube, Podcasting : Electronics
PIAiF beta / Raspberry Pi Audio Interface - YouTube
DACBerry ONE+ Brings High-Quality Audio to Your Raspberry Pi | by Cameron Coward | Medium
THE VALUE PROPOSITION IN AUDIO: ROLLING YOUR OWN IS AS EASY AS PI Recording and working with audio files on a simple Raspberry Pi DAW - Bits and Bytes - Audiophile Style