Top picks for fun, entertainment this weekend

Halloween Bash

at the Mystic Theatre

Dress to impress and look your scary best at the Mystic Theatre’s Halloween Bash 9:30 p.m. Saturday. There are two costume contests, for best overall and for best duo or group, with more than $500 in cash and prizes. Also, live music by Pride and Joy. 23 Petaluma Blvd. N., Petaluma. $20 in advance; $25 day of show. 765-2121, ticketweb.com.

SANTA ROSA

Party away holidayat Last Day Saloon

Get scary in Railroad Square with the Last Day Saloon’s Halloween Party at 9:30 p.m. Saturday. The highlight is costume contest with prizes ranging in value from $50 to $200.

And you can dance to hits from the ’70s through ’90s with the Cheeseballs. $10 in advance, $13 day of show. 21 and older. 120 Fifth St., Santa Rosa. 545-2343, lastdaysaloon.com.

SANTA ROSA

Latin music — but with a macabre twist

Latin music takes a lively, macabre twist at 8 p.m. Saturday when the Santa Rosa Symphony presents Una Celebracion del Dia de los Muertos — a Celebration of the Day of the Dead — at the Jackson Theater.

The collaborative Festival of Remembrance — the first of three chamber music concerts — showcases traditional Mexican melodies by Trio Nuevo Amanecer and Mexican music by the Santa Rosa Symphony Chamber Players.

Tickets are $69-$90 for a subscription package; $25-$32 for a single concert. Jackson Theater is located at the Sonoma Country Day School, 4400 Day School Place, Santa Rosa.Tickets: santarosasymphony.com or 546-8742.

SONOMA

Celebrate traditional Day of the Dead

The Sonoma Valley honors the departed with a traditional Dia de los Muertos or Day of the Dead on Sunday with observances and altars.

From 1 to 4 p.m. elaborate altars and sugar skulls in honor of the dead and created by various community groups will be shared at La Luz community center, 17560 Greger St., Boyes Hot Springs.

The observance moves to the Sonoma Valley Museum of Art at 4 p.m. (551 Broadway) with traditional folk music around an altar and ending with a luminaria-lighted procession to the Sonoma Community Center at 5 p.m. for a viewing and lighting of a Community altar followed by refreshments. Free. 276 E. Napa St. sonomacommunitycenter.org.

Meg McConahey, Diane Peterson, Dan Taylor