■ New Year's Eve: Freddy Clarke & the Wobbly World International Orchestra
An "international costume" party and performance by the guitarist Freddy Clarke and the Wobbly World International Orchestra ring in the New Year starting at 8 p.m. tomorrow night (Dec. 31) at the Oak City Bar & Grill, 1029 El Camino Real, Menlo Park. The New Year's Eve package is $100 per person and includes a six-course meal. Call 650-321-6882 or go to oakcitybarandgrill.com.
■ New Year's Eve: Ballroom-dancing party
Palo Alto's Cubberley Community Center Pavilion tomorrow (Dec. 31) hosts a New Year's Eve ballroom-dancing party at 4000 Middlefield Road. Waltz lessons at 8 p.m. will be followed by a dance party from 9 p.m. to 12:30 a.m., with a midnight toast and dance demos also part of the evening. Admission is $20. Call 650-856-9930 or go to readybyte.com.
■ New Year's Day: San Francisco Chamber Orchestra
At 3 p.m. New Year's Day, the San Francisco Chamber Orchestra gives a free concert at St. Mark's Episcopal Church, 600 Colorado Ave., Palo Alto. Seventeen-year-old cellist Nathan Chan will solo in Tchaikovsky's Rococo Variations for Cello and Orchestra. Also featured will be bass player Michel Taddei and soprano Anja Strauss. Go to sfchamberorchestra.org.