Just how music-obsessed is Hillary Kerr, the 37-year-old founder of a lifestyle-focused digital media company in Los Angeles? She can tell you what song was playing five years ago on the jukebox at the bar where she somewhat randomly met the man who became her husband. It was “These Days,” the version sung by Nico, the German singer-songwriter made famous by Andy Warhol and the Velvet Underground.

Actually, the song had been playing just before she met Jonathan Leahy, now 38, on that December night in 2011 at the 4100 Bar in the Silver Lake district of Los Angeles. Ms. Kerr can’t remember exactly what was playing when they met because at that moment she was jumping up and down “like Tigger,” as she put it.

In answering the usual what-do-you-do questions, Mr. Leahy told her he was a music supervisor for “Girls,” the HBO show created by and starring Lena Dunham. That was enough to get Ms. Kerr bouncing.