It’s the job of music publicists and promoters to quickly define a particular artist. Which category do we select from the pull-down menu under “genre”? What one word describes your music? How do we sell this to your target audience? LA Signal Lab is a band designed to confound those savvy music business people. Self described as “a new music collective freely combining jazz, classical, experimental, world, electronic, and early music,” their genre-defying mission might also prove to be audience defying. There’s no defying the talent of this collection of performer-composers, including pianist Dan Marschak, trombonist Nick DePinna, and saxophonist Hitomi Oba, who all possess the compositional chops to write their way out of any dilemma.