Heinrich
From Tardis Wiki, the free Doctor Who reference
Heinrich was a piano player at Bianca's Cabaret, a nightclub designed to look like it belonged in Berlin in the 1930s, but which in reality was on a planetoid in deep space.
Normally he would play fairly low-key lounge music on his own, but Heinrich was also responsible for backing music when the club chanteuse Bianca was singing. On rare occasion Heinrich would sing himself. He sometimes did a bad impression of Noël Coward. (AUDIO: The Wormery)