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Musical groups touch on jazz, klezmer, reggae, polka, gospel and more, as the festivities strive to reflect Hanukkah, Kwanzaa and other cultural traditions, this year delves deeper into Southern California’s Filipino and Aztec communities.

In addition to wrapping up his two new albums, “Brass Conspiracy” by Conspiracy Brass and “Spirit Stronger Than Blood” by the Elders, he delivered a Klezmer Brass Allstars album, “Chronika,” last December.

At 66, the trumpeter, composer, arranger and bandleader has collaborated with everyone from Mel Tormé to LL Cool J. A founding member of the Klezmatics, a band that helped to revitalize the klezmer style during the late ’80s, London has worked for decades at a fertile crossroads where Jewish music meets downtown jazz.

The celebration, happening on Monday at the Brooklyn venue Roulette, features the Klezmatics alongside three of London’s bands: Conspiracy Brass, a buoyant, funky horns-and-percussion aggregation; the Elders, a soulful, hard-swinging quintet of seasoned jazzers; and Klezmer Brass Allstars, who meld traditional Yiddish and Hasidic music with electronic beats.

He isn’t as well-known as some of the people he’s worked with, like Anderson, the novelist Kathy Acker, the choreographer Bill T. Jones, the singular cellist Arthur Russell, or David Byrne; or the people he’s studied with, including the founding Minimalists Terry Riley and Pauline Oliveros, with whom he played in a klezmer band.