Best known as the founder of San Francisco’s Hardly Strictly Bluegrass Festival, the late Warren Hellman’s musical legacy lives on today with an extended family of North Bay musicians and performers, who gather together for the Hellman Holiday Stomp. Children, grandchildren, siblings, cousins and friends of Hellman take the stage in several bands, including country-rock revelers Well Known Strangers, Lucinda Williams tribute act Lake Charlatans, Americana group Marco & the Polos and swinging outfit Nancy & the Lambchops. The evening caps off with the genial Go to Hell Man Band celebrating family bonds on Thursday, Dec. 21, at Sweetwater Music Hall, 19 Corte Madera Ave., Mill Valley. 8pm. $20–$22. 415.388.3850.