Interesting concept. Slight bug report: if I scroll up on the page, it unloads the player component and resets the music. I'd play with it some more, but my mood for awhile now has been "depressed and anxious", and I'd rather not reinforce that :D
This is great. I found it interesting that so most of the recommended albums aligning with a "positive" mood that I saw were by black artists in jazz and soul.