- implement mechanism for users to give feedback
- remove dead code
- check all files for insufficient inline-comments
- refactor 1 function
- think about accessibility strategies
- think about SEO strategies


- overview with last practiced songs, stats, progress :)
- tool for cutting up stuff (but not needed for me yet...)
- give feedback that button pressed, maybe disable and enable

- basic README
- possibly demo video

- if I hash filenames, could rather ethically gather data w/o much risk
- consider messing with time-until-next-snippet when things are harder/easier (but factor in which direction? xD)

