Check out the Lyric Video Studio, powerful and advanced video editor, infused with ai. LVS also includes fragment shaders and with projectM, you can create audio reactive backgrounds more easily!!!
Forked from https://github.com/projectM-visualizer/projectm
Main changes are in src/sdl-test-ui. Lyric Video Studio links dynamically (well, not links, but uses external exe) to that source. Feel free to use this repo if you need, back-link and credits to https://lyricvideo.studio and original project much appreciated