If there's another upgrade with real tracks this December, I'd opt for more smooth jazz styles/instruments. I've been very pleased with the traditional jazz styles, ballads, bossas, country, etc., but I'd like to have access to more styles like you hear on the weather channel. I just got XM radio in my car and have discovered the smooth jazz stations. Also, there's a lot of these styles available on the jazz radio section of itunes. It seems that these styles emphasize the drums and bass line a lot---a little bit funkish and hip hopish at times. Smooth jazz solos don't matter to me, since I'm doing that myself. It's that distinctive rhythm section that draws my interest. What would be nice (to me) would be a series of smooth jazz styles at various tempos that clearly represent this style of music. Yes, BIAB has some of these already and I'm using them.