File:The Doctor's modified version of 'Rock-a-bye Baby'.ogg

24th century variation of the 19th century Earth lullaby Rock-a-bye Baby, sung by The Doctor on board of the USS Voyager in 2377 while he examined Seven of Nine's misaligned biradial clamp. It was part of a collection of songs he had recorded as a baby shower gift for Tom Paris and B'Elanna Torres.