After having Wilco sammiches on the weekend, how about Wilco performing “You And I” on Letterman. Dan Mangan performs “Robots” at Criminal Records in Toronto, during Canadian Music Week. Gram Parsons & Chris Hillman trade off vocals in this Flying Burrito Brothers classic. Oh, and Sneaky Pete shreds on the pedal steel. The Byrds (Roger McGuinn, John York, Clarence White & Gene Parsons) play “You Ain’t Goin’ Nowhere” and “Wheels On Fire” on Playboy After Dark. White’s playing on “Wheels On Fire” is mind blowing.