L.A. previews October 5-11: Azar Lawrence, Bobby West, Mastodon, Xenia Rubinos/Baba Orchestra, Ches Smith, Benn Clatworthy, Dying Fetus, Obscura, Satan, Brandt Bjork, Ozzy Osbourne, Scot Ray.

* indicates an event in the worldbeating Angel City Jazz Fest, Sept. 30-Oct. 14. Get the full lineup here.
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* Fri. Oct. 5 -- L.A. sax legend Azar Lawrence delves into bossa bump and Tranetime waltz on his current "Elementals," which features the talents of Munyungo Jackson and Smitty Smith; it would be no shock if one or both of those drum masters shows up. The Will Kjeer Trio, winner of this year's Angel City Young Artists Competition, opens. At LACMA, 5905 Wilshire Blvd., LA 90036; 6-8pm; FREE; Friday summer jazz schedule here.

Fri. Oct. 5 -- Bigtime session pianist & producer (from Wynton Marsalis to Helen Reddy) Bobby West does his own jazz thing with the experienced aid of bassist James Leary and drummer Fritz Wise. At the World Stage, 4321 Degnan Blvd., Leimert Park 90008; 9pm (two sets); $20; www.theworldstage.org.

Fri.-Sun. Oct. 5-7 -- Adult Swim Festival features all kinds of stuff including heavy music, such as raw rockers High on Fire (Sat. 5:50pm), prog-metal icons Mastodon (Sat. 10:55pm) and hardy thrashers Power Trip (Sun. 3:55pm). At Row DTLA, 777 Alameda St., downtown 90021; noon-midnight; single-day passes $85; details here.

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* Sat. Oct. 6 -- Singer Xenia Rubinos gets funky, sexy & trippy with drummer Marco Buccelli and bassist-keyboardist Jackson A. Hill; Lauren Baba's 17-piece Baba Orchestra, featuring the likes of Joey Sellers, Gavin Templeton, Brian Walsh and Cathlene Pineda, colors the spaces between jazz and modern classical music. At the John Anson Ford Amphitheater, 2180 Cahuenga Blvd. East, Hollywood 90068; 8pm; $15-$55; www.angelcityjazz.com.

* Sun. Oct. 7 -- A whale of an outsville New York comprovisational drums-piano-viola trio: Ches Smith-Craig Taborn-Mat Maneri. Opening is Subtle Degrees, the high-energy sax-drums duo of tenorman Travis Laplante and drummer Gerald Cleaver. At the Blue Whale on the third level of Weller Court Plaza, south of East First Street between South Los Angeles Street and South San Pedro Street, Little Tokyo 90012; 9pm-midnight; $20; 21+; parking $9 underneath off Second Street at the sign of the P in a circle; (213) 620-0908; www.angelcityjazz.com.

Sun. Oct. 7 -- Saxist Benn Clatworthy has been defending L.A.'s mainstream battlements since Carter was prez. His seasoned ensemble includes trumpeter Ron Stout, drummer Yayo Morales, trombonist Joey Sellers, pianist Bryan Velasco and bassist Brian Wright. At Moss Theater in the Herb Alpert Educational Village of New Roads School, 3131 Olympic Blvd., Santa Monica 90404; 7pm; $25; www.jazzbakery.org.

Sun. Oct. 7 -- Maryland death-metal vets Dying Fetus head a tough bill with Incantation, Gatecreeper, Genocide Pact. At the Regent Theater, 448 S. Main St., downtown 90013; 7pm; $25; 18+; www.ticketfly.com.

Sun. Oct. 7 -- German death technicians Obscura wind it up tight and angular on their topnotch current "Diluvium"; stand back to avoid trampling by gangs of guitar geeks. With Beyond Creation, Archspire, Inferi, Exist. At 1720, 1720 E. 16th St., downtown 90021; doors 7pm; $20; all ages; full bar; food; www.1720.la.

Sun. Oct. 7 -- Way back in '79, when the New Wave of British Heavy Metal was, uh, new, Satan arose, and through name and personnel changes, they're still damning. With Gravedanger, Motorsickle, Heavyness, Bloodshred. At the Whisky, 8901 Sunset Blvd., West Hollywood 90069; doors 7pm; $20; (310) 652-4202; www.whiskyagogo.com.

Wed. Oct. 10 -- Brandt Bjork helped invent distortion-soaked desert rock with Kyuss, and he ain't through, especially with the support of veteran Cali heavy instrumentalists Nebula. At the Redwood Bar & Grill, 316 W. Second St., downtown; 9pm; $20; (310) 245-0273; www.theredwoodbar.com.

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POSTPONED INDEFINITELY. Thurs. Oct. 11 -- With Zakk Wylde bakk on guitar, Ozzy Osbourne has embarked on No More Tours 2. Don't wait for 3! Slipknot spinoff Stone Sour opens. At the Hollywood Bowl, 2301 Highland Ave., Hollywood 90068; 7:30pm; $65 and way up; (323) 850-2000; www.hollywoodbowl.com.

Thurs. Oct. 11 -- Guitarist Scot Ray teams for nonstandard slide excursions with Lou Reed drummer Danny Frankel and bassist Darryl Tewes. At Sunspace, 9683 Sunland Blvd., Shadow Hills 91040; 8-10pm; $10.