Music at the Mission, a classical chamber music series and Design2Market, a Silicon Valley-based design firm, will co-produce “One Year After: A Benefit Concert for the Children of Tohoku, Japan” at the Old Mission San Jose, 43300 Mission Blvd., Fremont, Calif. Concert will raise funds for the “Smiles and Dreams: Tohoku Kids’ Support Project” and feature the Somei Yoshino Taiko Ensemble, the Music at the Mission Chamber Players and mixed media artist Kathy Fujii-Oka. Pre-event activities start at 6 p.m. and the concert at 7 p.m. Reception: at the Mission Coffee, 151 Washington Blvd. (across from the Mission), after the concert. Project serves youth who have lost their homes, schools and belongings. Tickets: www.musicatmsj.org/oneyearafter for $35 adults, $25 students and seniors and $5 for children under 12. Info: (408) 232-0440.