music: Name the Artist/Band that recorded this song: Interlude: Twisted Elegance?

Questions

Trivia : In what year were the first dot matrix printers marketed?

Trivia : Which creatures sang "We all stand together"?

Trivia : How many strings are there on a Spanish Guitar?

Trivia : What band recorded the clasic album "Dark Side Of The Moon" in 1973?

Trivia : In tennis, what name is given to a serve which cannot be returned?