Fred Armisen Covers "Blackbird" by The Beatles (2009)

Paul McCartney explained on Chaos and Creation at Abbey Road, aired in 2005, that the guitar accompaniment for “Blackbird“ was inspired by Johann Sebastian Bach’s Bourrée in E minor, often played on the classical guitar. As teenagers, he and George Harrison tried to learn Bourrée as a “show off“ piece. The Bourrée is distinguished by melody and bass notes played simultaneously on the upper and lower strings. McCartney adapted a segment of the Bourrée (reharmonised into the original’s relative major key of G) as the opening of “Blackbird“, and carried the musical idea throughout the song. (Beatles_song)#Origins