Classically trained violinist David LaFlamme and his wife, vocalist Linda Baker LaFlamme, first performed together around the Bay Area in the folk and rock band It’s a Beautiful Day in the mid-1960s, utilizing his melodic strings and her harmonic voice, with psychedelic and jazzy undertones in their roots music. Though the band’s initial run ended in the ’70s, the LaFlammes have kept the music alive, and this weekend, the couple, both born in May, are celebrating their birthdays with a concert event on Saturday, May 14, at Rancho Nicasio, 1 Old Rancheria Road, Nicasio. 8:30pm. $15–$20. 415.662.2219.