Started from: https://www.freecodecamp.org/news/how-to-make-create-react-app-work-with-a-node-backend-api-7c5c48acb1b0/


TODO:

- Ranking system
    - Have "ranking contexts". These can be stored in the database.
        - Per artist (this removes need for "per album", which can be a subset)
        - Per tag
        - Per playlist
    - Have a linking table between contexts <-> artists/songs. This linking table should include an optional ranking score.
    - The ranking score allows ranking songs per query or per query element. It is a floating point so we can always insert stuff in between.
- Visually, the system shows ranked items in a table and unranked items in another. User can drag to rank.