What are the gab for merrily you roll along?

"Merrily We Roll Along" is a musical by Stephen Sondheim that explores the lives of its characters in reverse chronological order. The story follows the rise and fall of a successful composer, Franklin Shepherd, and his relationships with friends and collaborators. The "gaps" in the narrative often refer to the moments of personal sacrifice, lost opportunities, and the impact of choices made by the characters over time, highlighting themes of regret and the passage of time. The musical's structure encourages audiences to reflect on how past decisions shape present realities.