Tulip Creative Computer runs MicroPython, targeted at musicians, for only $59 — its open-source nature means you can make your own or just run the software

The Tulip Creative Computer is a Free and Open-Source (FOSS) musical computer project. It is available as a $59 full-kit purchase or as a pure software solution on existing PCs and Macs. 

The Tulip Creative Computer is a Free and Open-Source (FOSS) musical computer project. It is available as a $59 full-kit purchase or as a pure software solution on existing PCs and Macs.