Make xenharmonic music and explore musical tunings.
Overview
microwave is a microtonal waveform synthesizer based on:
It features a virtual piano UI enabling you to play polyphonic microtonal melodies with your touch screen or mouse. The UI provides information about pitches and just intervals in custom tuning systems.
Installation
You might need to install additional dependencies required by Nannou. For me, the following setup worked:
If this doesn't help or you don't use apt, try following these instructions.
Usage
You can run microwave in continuous or scale-based mode:
For playback of sampled sounds provide the location of a soundfont file:
The command should spawn a a window showing a virtual keyboard. This might take a while for large soundfonts.

Use your touch screen, keyboard or mouse to play melodies on the virtual piano.
To see how scale expressions work, visit tune.