Hi!
The last version of Sunvox can work on the uConsole, if you use a 6 + kernel. You can download a custom (and clean) image created by @Rex here:
https://forum.clockworkpi.com/t/bookworm-6-6-30-for-the-uconsole-and-devterm/
It’s work great for me, just think to edit the config file for screen! (details in thread)