When did you last cry in front of another person? What is your most treasured memory? When did you realize that the future of musical theater might just take the form of a podcast?

In “36 Questions,” the composers Chris Littler and Ellen Winter and the sound designer Joel Raabe have created a radically intimate, slightly twee and seriously winning musical. So far, anyway. The first act began on July 10. Act II (which I’ve previewed) will drop on Monday, and Act III two weeks later. All three parts are podcast episodes, distributed free of charge.

“36 Questions” sounds like a lot of musicals. It has a pop score goosed with blues and indie rock, endearingly quirky characters, wry lyrics. But here’s what it doesn’t have: sets, costumes, chorus, lights, anything except two pealing voices and a glut of sound effects.

In the first act, the lyrics find Judith Ford driving down a deserted road on the way to see her husband, Jase Connolly, who walked out on her two weeks earlier. In his defense, he had learned that she had been using an assumed name and she wouldn’t tell him why. The couple fell in love two years before when they asked each other 36 questions derived from a social psychology research paper (“The Experimental Generation of Interpersonal Closeness: A Procedure and Some Preliminary Findings”) and popularized by a Modern Love column. Now Judith thinks that if she can persuade Jase to redo the 36 questions — this time offering honest answers — she can resuscitate their marriage. In its acute focus on a troubled relationship, the show is a little like “The Last Five Years,” if “The Last Five Years” nixed the dual timelines in favor of some dorky board-game jokes.