Paul Gambaccini hosts the music quiz with Stephen Banks of Bristol, Brian Davies from Middlesex and Diane Hallagan from Leeds.
Paul Gambaccini chairs the general knowledge music quiz.
The pace hots up as the series enters its semi-final stage, with three of this year's heats winners going into battle for a place in the Final in a few weeks' time. 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: Stephen Banks from Bristol, Brian Davies of Middlesex and Diane Hallagan from Leeds.
Producer: Paul Bajoria
First broadcast on BBC Radio 4 in 2008.