NARROWSBURG, NY — The Delaware Valley Arts Alliance (DVAA) celebrates the arrival of spring by kicking off the spring concert series with the instrumental group Jazzmosis, playing with Yasgur, at the Tusten Theatre, 210 Bridge St., on Saturday, March 28 at 8 p.m.

Sullivan County-based Jazzmosis, founded in 2011, features drummer Mike Cervone, guitarist Steve Schwartz, bassist Tom Volpe and saxophonist Greg Fiske. The group traces its musical roots to the jazz rock/jazz fusion movement of the 1960s, continuing that tradition during their shows with extended solo and group jams.

During its final set, Jazzmosis will be joined on stage by Yasgur, a band that formed when a group of friends began jamming in Bethel near the site of the 1969 Woodstock Music Festival, Yasgur’s Farm. They are Rich Johansen on vocals and guitar, Mike Moss on vintage percussion, Dan Berger on harp, Tony Penn on guitar and vocals, and Suresh on bass. Yasgur covers tunes by Muddy Waters, Tom Waits, Bruce Springsteen, the Grateful Dead and Chuck Berry, among others.

Tickets for Jazzmosis and Bob Malone cost $15 at the door, $12 in advance. A wine bar is available before the performances. Visit delawarevalleyartsalliance.org or call 845/252-7576.