Spotify – genres?

Ok a few hours into it, I've located what looks like a major weakness in Spotify. One of the fun things about Rhapsody is discovering new music. What are the top albums in "Piano Jazz". Had to look and look for a similar feature in Spotify. The closest I can find is to type this into the search box:

genre:"piano jazz"

Oy! And by the way, how am I supposed to know that "piano jazz" is a legitimate genre? Oh just look on this list.

Whoops. Piano Jazz is not a real genre, so it doesn't work.

Any one know any tips?

• Link to site: Spotify – genres?