"Deep cuts" - artists/tracks/albums that a user likes more than most people

We could provide a list of a user’s deepest cuts. Say I listen to an indie artist nobody else hears. Count up all the listens in the database for every track, and see what % of those listens are me. For obscure bands, that will be close to 100%.

It could be implemented with (pseudo-SQL):

select track, listens, (listens / total_listens) as user_percent from db
ORDER BY user_percent DESC
WHERE user = myusername

Personally, I’m really proud of my deep cuts and always happy to talk about and evangelize them. They’re the tracks people should hear more, and I wish I could broadcast them more easily.