Would this work as a basis for a software modular synth with a node or a patch bay UI like BespokeSynth?

Awesome-node-based-uis: https://github.com/xyflow/awesome-node-based-uis#audio

Also, samin23/polymath has a number of useful features like BPM and key and tonal quality extraction: https://news.ycombinator.com/item?id=34756949