Question: What band from San Francisco, California employs Amos as a multi-instrumentalist?

full_context: Document 1: Om (band): Om (sometimes stylized as OM) is an American heavy metal band from San Francisco, California. Formed as a duo in 2003 by the rhythm section of the band Sleep, OM is currently a trio.
Document 2: Daniel Amos: Daniel Amos (aka D. A., Dä) is an American Christian rock band formed in 1974 by Terry Scott Taylor on guitars and vocals, Marty Dieckmeyer on bass guitar, Steve Baxter on guitars and Jerry Chamberlain on lead guitars. Current members include bassist Tim Chandler, guitarist Greg Flesch and drummer Ed McTaggart. Over the band's career, they have experimented with country rock, rock, new wave, and alternative rock.
Document 3: Holy Sons: Holy Sons (band) is built around Portland songwriter and drummer Emil Amos. Amos is notable for releasing "genre-bending" albums, according to "LA Weekly" music reviewer Chris Martins, and for being a prolific songwriter; one account in "Spike Magazine" suggests he has written over a thousand songs. Amos is also a multi-instrumentalist for groups such as Grails and Om and Lilacs & Champagne. Amos was born of the lo-fi home recording movement of the '80s and early '90s.
Document 4: AM (musician): AM is an American songwriter, musician, composer and producer born in Tulsa, Oklahoma, raised in New Orleans, and currently residing in the Los Angeles Echo Park neighborhood in California. AM or A.M. refers to his band and is also the moniker for this artist. Known for his seamless fusing of pop, soul, funk and world music, recording artist AM has released several critically acclaimed albums and toured the world. His newest collaboration with London artist/producer Shawn Lee, has been described by "Rolling Stone" as "hypnotic" and by Daytrotter as “intricate, groove-filled dreamscapes that are every bit organic and every bit mad genius."
Document 5: Ozomatli: Ozomatli is an American six-piece band playing primarily Latin, hip hop, and rock music, formed in 1995 in Los Angeles. They are known both for their vocal activist viewpoints and their wide array of musical styles - including salsa, jazz, funk, reggae, rap, and others. The group formed in 1995 and has since released seven studio albums. The group is also known for advocating for farm-workers' rights and immigration reform. The band has performed in various countries all over the world, including China, Tunisia, Jordan, and Burma. Although the band has had many member changes over the years and has sometimes had as many as ten members, the current six members have been in the band since its debut album.
Document 6: Josh Homme discography: Josh Homme is an American rock musician, who has released 18 studio albums and has collaborated with 26 different artists. He started playing guitar in the 1980s and formed a band with Palm Desert, California school friends John Garcia and Brant Bjork, initially under the name Katzenjammer, then Sons of Kyuss, and later shortened to simply Kyuss. The band released an extended play (EP), "Sons of Kyuss" (1990), when Homme was 16, before going on to record four critically acclaimed studio albums and a greatest hits release, without breaking through to mainstream success. After the break-up of the band in 1995, Homme considered abandoning his music career, but was persuaded by vocalist Mark Lanegan to join the Screaming Trees on tour as second guitarist.
Document 7: Oh Sees: OCS is an American garage rock band from San Francisco, California, formed in 1997. The band currently consists of primary songwriter and core member John Dwyer (vocals, guitar), alongside Tim Hellman (bass), Dan Rincon (drums) and Paul Quattrone (drums). Oh Sees sound incorporates a wide range of rock genres, including 1960s garage rock and psychedelic rock, punk rock, noise rock, art punk, and 1980s post-punk.
Document 8: Daniel Amos (album): Daniel Amos is the self-titled debut album by Christian rock band Daniel Amos. The album was issued in 1976 by Maranatha! Music and was produced by Al Perkins. It is typical of the country rock sound the band performed in the mid-1970s before their switch to alternative rock in the early 1980s.
Document 9: Metallica: Metallica is an American heavy metal band based in San Rafael, California. The band was formed in 1981 in Los Angeles when vocalist/guitarist James Hetfield responded to an advertisement posted by drummer Lars Ulrich in a local newspaper. Metallica's current lineup comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett, and bassist Robert Trujillo. Guitarist Dave Mustaine (who went on to form Megadeth) and bassists Ron McGovney, Cliff Burton, and Jason Newsted are also former members of the band.
Document 10: Waterlaso: Waterlaso has his its roots in Sedona, Arizona where Michael Cameron, singer and songwriter for Waterlaso, started recording music in the mid 90s in his bedroom. At the time he played with several Northern Arizona bands, the most popular of which being There Goes Atlantis, who performed alongside notable cult musician Jack Logan and Swedish pop favorites Salt. Between 1994 and 1999 Cameron recorded and released 8 albums on cassette 4-track, and played a major part in Arizona's low-fi recording scene during that era. After There Goes Atlantis disbanded, Cameron relocated to Phoenix and recorded Waterlaso's ground-breaking 2001 release "What Have You Ever Done To Deserve Everything You've Ever Wanted" making several 10 Best lists for that year. Currently living in Los Angeles, he's now working with Keith Krey (Drums), Nick Cullen (Guitar, Bass) and Padra Moinian (Synth). Waterlaso has most recently released "Wild" on Mountain Fighting for which they enlisted one of the most influential producers in indie music Mark Kramer to put the finishing touches on the record. He has worked with Galaxie 500, Ween and produced Urge Overkill who covered "Girl You'll Be A Woman Soon" for the Pulp Fiction soundtrack. Waterlaso has had music featured in the films "American Standard" and "The Matter With Clark."
Document 11: Ben Chasny: Ben Chasny is an indie rock and psychedelic folk guitarist. His primary projects are Six Organs of Admittance (his solo psych folk project) and Comets on Fire (a psychedelic rock band). He made his recording debut in 1996 with his heavy, free rock project Plague Lounge on "The Wicker Image", an LP released conjointly between the New World of Sound and Holy Mountain labels. Holy Mountain went on to become the "home" of many of his releases under the Six Organs Of Admittance moniker. He has also released an album with Hiroyuki Usui under the name August Born. Chasny has lent his talents to other projects such as Badgerlore, Double Leopards, Current 93 and Magik Markers both in live performance and studio albums. More recent musical projects of his include the avant-folk trio Rangda (along with guitarist Richard Bishop and drummer Chris Corsano) and the more melodic and conventional 200 Years with Magik Markers' Elisa Ambrogio.
Document 12: Omen (Soulfly album): Omen is the seventh studio album from the metal band Soulfly. It was recorded in November 2009 and was released first in Japan on May 18, 2010 and on May 25, 2010 in other parts of the world. It was released on May 24, 2010 in parts of Europe. It is the last album to feature bassist Bobby Burns and drummer Joe Nunez who were replaced by Asesino frontman, Tony Campos and former Borknagar drummer David Kinkade in mid-2011. At just over forty and a half minutes, it is the band's second shortest album while the shortest being "Archangel" at thirty-six and a half minutes.
Document 13: Omen (band): Omen is an American heavy metal band. The band was formed in Los Angeles, California, in 1983, by lead guitarist Kenny Powell, previously with the band Savage Grace and signed on with Metal Blade in 1984, with whom they released their debut "Battle Cry" (which contained "The Axeman", which appeared on the soundtrack for the Heavy Metal themed 2009 video game "Brütal Legend").
Document 14: Of Mice &amp; Men (band): Of Mice & Men (often abbreviated OM&M) is an American metalcore band from Orange County, California. The band's lineup currently consists of lead vocalist and bassist Aaron Pauley, lead guitarist Phil Manansala, rhythm guitarist Alan Ashby, and drummer Valentino Arteaga. The group was founded by Austin Carlile and Jaxin Hall in mid-2009 after Carlile's departure from Attack Attack!. Since 2009, the band has released four studio albums. Carlile departed from the band in December 2016 citing that a long term health condition prompted his exit. After Carlile's departure the band continue to pursue creating music with Pauley taking on both bassist and lead vocalist duties.
Document 15: Emek: Emek x is a designer, illustrator and fine art painter. Famously penned "The Thinking Man’s Poster Artist" by punk- rock singer Henry Rollins while working on his album cover for A Rollins in the Wry, amongst other Rollins' album covers and gig poster commissions. Emeks' art has appeared in films, galleries, and walls of fans and venues worldwide. His prints are often signed and numbered where the limited quantity of the edition increases the rarity of the product. Emek's work is highly sought after by collectors of his work, as well, as fans of the performer(s). Emek regularly attends the annual "Hall of Flowers" (poster show) in San Francisco, California hosted by TRPS (The Rock Poster Society). The largest collection of Emek art and merchandise to browse and purchase is at The Peoples Art of Portland Gallery in Portland, Oregon’s Pioneer Square Mall. As resident artist, Emek releases new and rare works to the gallery with frequency. New release gig posters, prints and merchandise are available for purchase through his online store at: https://www.emekstudios.com
ground_truth: Om