I'm the opposite of you. I don't do songs, I do albums.
And there are just too many albums to go through each week. I'm on Redacted and Orpheus though, pulling the Top 10s each week.
Why not read some music blogs or go to a record store, or talk to your friends about the music they like?
I don't share my friend's music taste and record stores for sure don't have what I like (its usually small soundcloud accounts). Also the things I like about a song are not genre bound, its usually very subtle things that are unsearchable, hence even of the songs I like I usually only like ~30% of the song itself. With a personally tuned reward model I can strictly focus on amplifying the subtleties instead of searching by means of exhausting indirection