Some folks are getting the jump on Halloween; here’s a brief list of weekend-before attractions and gatherings.

FRIDAY, OCT. 26

BOO!: The first show of the two-day electronic lineup includes Afrojack, Malaa, Mercer, Habstrakt, Dombresky, Falcons and David Steven. 6 p.m., $70. Bill Graham Civic, 99 Grove St., S.F., www.ticketmaster.com

Terror-Rama III-Dead The Whole Time: Awesome Theatre’s double feature includes “The Suffered” by Colin Johnson and “My Cannibal Summer” by Claire Rice. 7 p.m. Friday-Saturday, $25-$30. PianoFight, 144 Taylor St., S.F., www.pianofight.com

The Deadly Disco: House music producers MK and Camelphat co-headline a Halloween-themed “night of frighteningly good music.” 9 p.m., $35-$60. Midway, 900 Marin St., S.F., www.eventbrite.com

Haunted Hearts: Desert Hearts’ house and techno festival features Mikey Lion, Lee Reynolds, Marbs and Porky. 10 p.m., $30. 1015 Folsom 1015 Folsom St., S.F., www.evenbrite.com

Kungs: French pop artist-producer Valentin Brunel appears in “Haunted No Tell Motel,” a Halloween club show. 10 p.m., $25-$30. Love and Propaganda, 85 Campton Place, S.F., www.loveandpropaganda.com

Are You Afraid of the 90s Halloween Bash: Costume contests, dirty dance moves of the decade and tribute dance band The Fresh Makers are in the lineup. 10 p.m., $20. PianoFight, 144 Taylor St., S.F., www.pianofight.com

SATURDAY, OCT. 27

Randall Museum Family Halloween Day: Spooky but not too scary activities for little ones include creepy crafts, ghoulish games, trick-or-treating and pumpkin carving. 10 a.m. to 2 p.m., free. 199 Museum Way, S.F., www.randallmuseum.org

Boo! Bark, Brews + Bites: Tricks, treats, frights and delights are in store at the Halloween celebration for pets and their humans, a celebration coinciding with DogFest Walk ‘n Roll Bay Area, a benefit for Canine Companions for Independence. 11 a.m. to 4 p.m., free. Jack London Square, Broadway at Embarcadero, Oakland, www.jacklondonsquare.com

BOO!: The second show of the two-day electronic lineup includes Flosstradamus, GTA, Valentino Khan, Dr. Fresch, Wuki, Nitti Gritti and Dials. 6 p.m., $70. Bill Graham Civic, 99 Grove St., S.F., www.ticketmaster.com

USS Hornet Monster Bash 2018: The Halloween party, with live swing music, zombies, costume contest and haunted corridor is benefit for museum, formerly a U.S. Navy aircraft carrier. 7:30 p.m., $35-$60. 707 W. Hornet Ave., Pier 3, Alameda, www.uss-hornet.org

Clerestory: The vocal chamber group’s concert “Night Draws Near” features music inspired by Halloween, All Souls’ Da, and El Día de los Muertos. 8 p.m., $5 -$30. St. Mark’s Lutheran Church, 1111 O’Farrell St., S.F., www.eventbrite.com

The Freak Show!: Costumes or semi-formal cocktail attire are required a the Clift Hotel’s eighth annual bash, billed as “San Francisco’s sexiest Halloween party.” 9 p.m., $30-$250. Clift Royal Sonesta Hotel, 495 Geary St., S.F., www.eventbrite.com

SUNDAY, OCT. 28

Bach and Macabre: Music at Trinity presents the program of vocal music with a Halloween twist, featuring soprano Sarah Benzinger, tenor Michael Orlinsky, organist Michael Joyce, violinist Alan Chen and cellist Andres Vera. 4 p.m., $21. Trinity Episcopal Cathedral, 81 N. Second St., San Jose, www.brownpapertickets.com

Terror Vault: The “untold story and dark history of The San Francisco Mint” comes to the fore in the seasonal haunted attraction, a combination of theater, haunted mazes, escape rooms and special effects, 6:30 to 10 p.m. Oct. 28-Nov. 3, $60. Mint, 88 Fifth St., S.F., www.eventbrite.com

MONDAY, OCT. 30

Bram Stoker’s Dracula: The horror movie starring Winona Ryder screens, in honor of the actress’ birthday. 7:30 p.m., $10-$12.50. Balboa Theatre, 3630 Balboa St., S.F., www.cinemasf.com/balboa