Do really think that's the best way to do things? We could add help to justify a more difficult system, or just keep everything self explanatory. Granted, the latter is more difficult to conceive initially, but done correctly, we'll be better off. New users will have a more immediate understanding of trending track styles, and will be able to fit in nicely. Not that a little drop down help will make a huge difference, but there will admittedly people whose pride outweighs the cost of a single click.
Also, I think help is a good idea, regardless. I just don't believe that it should be a necessary read.