Paul Gambaccini chairs the general knowledge music quiz.
The questions cover every aspect of music - from the classical repertoire to world music, show tunes, film scores, jazz, rock and pop.
Three contestants battle it out in the second semi-final:
Paul Grayson from Ripon
Peter Whitehead from Bromley
Tim Wise from Wallington in Surrey
Producer: Paul Bajoria
First broadcast on BBC Radio 4 in May 2009. Show less