Tonight on BBC4:

10.45 The Joy of the Guitar Riff

A look at the development of the virtual DNA of rock ‘n’ roll over the last 60 years of popular music, from Chuck Berry through to the White Stripes.

11.45 Great Guitar Riffs at the BBC

Grab your air guitar for this compilation of clips with performances from the likes of Jimi Hendrix, Cream, AC/DC, Radiohead and the Smiths.