Comment by halfeatenscone

I'm not sure how easy it is to grok these by playing with them. If you're confused, the "About" section has some explanation of how the matrices are constructed and how to interpret them: https://colinmorris.github.io/SongSim/#/about

Also, in case it's not clear, you can press the "+" button next to the song dropdown to open a textarea where you can paste arbitrary lyrics.