Orchestral in scope, but rock by instrumentation, Radiohead pushed the musical limits of rock music with its 1997 landmark album 'OK Computer'.

This arrangement of the album's epic track "Paranoid Android" will challenge any string quartet. Tricky rhythms and time-signature changes are just the tip of the iceberg for this complex piece of music.

Polar opposite in tone to "Paranoid Android" is the Grammy-nominated song "House of Cards" (In Rainbows, 2007), an uncharacteristically relaxed Radiohead love ballad.

Melodically deadpan, the crux of the song lies in the rhythmic groove created by the guitar figure faithfully played in this string quartet arrangement by the viola.