Keldon Jones, a Software Engineer at HP pulled together this query (I have no idea how) that can pull FULL BAND STATS for any Rock Band player or band! You can change the query so it’s by system, instrument, and difficulty. It’s pretty remarkable. Anyway, here’s the link!
UPDATE 1: Some people (myself included) have been having trouble getting full band names to properly pull up info. I can confirm it does work with gamer tag/account name now. Send me a tweet if your band name is working properly.
UPDATE 2: OK, this was an easy one to solve once I slowed down and looked again. If you want full band scores, you have to change the instrument field to BAND, instead of GUITAR, BASS, etc.