It’s the holiday season, and that means Unknown Mortal Orchestra are back with another installment of their annual “SB” series. Today (December 25), the Ruban Nielson-helmed group have shared a piece called “SB-10.” The nearly 45-minute song features contributions from Ruban’s brother Kody on drums, as well as Jake Portrait on bass. Check it out below.

Unknown Mortal Orchestra have been releasing their yearly ambient or instrumental track since 2013, always sharing the new music around Christmastime. Since dropping “SB-09” last year, UMO have announced a 2023 tour in support of a forthcoming double album. They also released the first taste of the record—a cut called “I Killed Captain Cook.”

Revisit Pitchfork’s 2015 interview “Love Is Strange: The Multitudes of Unknown Mortal Orchestra’s Ruban Nielson.”