Can you think of this song?

It's a song from the 80's or early 90's and it has a black rapper (I can't think of his name) playing the harpsichord or something like it with a wig on. There are references to a clical musician like Amadeus (not the song Rock Me Amadeus) or Beethoven or something like that.) It's chorus is not a rap, but he's singing in a room with candlesticks and a butler in the background. The tune is actually a simple happy chorus, but I can think of it. Help!