The method is the same: The drama is interrupted by the cast spontaneously breaking into elaborately choreographed production numbers that use scratchy recordings of contemporary pop tunes, to which they lip sync. The songs hint at the underlying tensions and sadness of the lives of the characters, as if they are coming from their unconscious. Potter at the same time is commenting on the growing influence of the media in everyday life, even then. It’s hard to describe other than to say that it’s brilliant.
The title character of The Singing Detective suffers from a horrific skin disease — as Potter did — and spends his days hallucinating from a hospital bed. The lead character of Pennies From Heaven (played in the BBC production by Bob Hoskins, who retired earlier this year after being diagnosed with Parkinson’s disease) is a traveling sheet music salesman. Steve Martin played the role in the American production, which got mixed reviews.
The song in the clip below starts at about the 6 minute mark.