How to build a Synthesizer in Python!

Here is my electronics project I created for a music engineering class I'm currently taking! What features would you like to see my Python Synthesizer do next? What songs would you like to hear my synthesizer play? Please drop some suggestions in the comments! This script utilized the following packages: pydub: http://pydub.com thinkdsp: https://greenteapress.com/wp/think-dsp/