I'm unimpressed with the RB: Beatles drums, with Rock Band 2 full kits going for $99.99 or cheaper now, you would be wiser to just buy the full kit on sale and then buy the Beatles game separately.
Squier Player/Pro Drums/Pro Keys
Thx to Boshes_95 for the AV
Pls improve guitar pro for RB4. Any guitar, no mute, dynamic difficulty