This is a Python app I've built for fun, while learning the Textual library, it's a piano/synthesizer app that you can play with the keyboard + mouse.

You can see a demo video of it here: https://www.youtube.com/watch?v=0VXit110PcA

You need to install FluidSynth before using it: https://www.fluidsynth.org/

It uses the Python bindings pyFluidSynth library: https://github.com/nwhitehead/pyfluidsynth And the General User GS soundfont: http://www.schristiancollins.com/generaluser.php

If you try it out, i'd love to hear if you think it's cool, and if you have ideas on what could make it even cooler. =)