Switchboard festival offers an eclectic musical mix

For nearly a decade, the Switchboard Music Festival has been a reliably unpredictable purveyor of works from across the new-music landscape.

There’s notated and improvised music, contemporary classical and jazz, rock and everything in between — and the festival format, an eight-hour smorgasbord that lets patrons come and go freely throughout the day, means that even if one act doesn’t suit your fancy, something else is coming up that will.

The lineup for the ninth annual festival is a characteristically eclectic affair, beginning with a performance of Julius Eastman’s 1973 proto-minimalist classic “Stay on It” and concluding with headliner Tyondai Braxton.