Thanks for the reply Matthew. I already knew that though. What I'm asking is not how to browse genre, but how to search them with spotlight. Apples genre are so plentiful that I don't know where a particular sub-genre is, or even if it exists within the store. For example I am searching for 'big band'. I look under the main genre and it's not there. I look under Jazz and it's not there. I do a spotlight within iTunes and it searches for artists, albums, and song names but not genre. I don't have the time to manually search for 'big band' because I don't even know if it's there and Apple looses my business. Simple as that.
Thanks anyway
n8