Guess The Genre #2792 (Gathered by Ken Anderson)

SondheimNightMusic SondheimIntoTheWoods
SondheimFunnyThingHappened SondheimGypsy
SondheimWestSideStory SondheimMarryMe
SondheimMerrilyWeRoll SondheimSweeneyTodd
SondheimFollies SondheimSundayInThePark

Answer: Stephen Sondheim - Next is Guess the Genre #2793

Or, I don't want to guess - Show Me A List