Plenty of local bands are ambitious; San Francisco's Musical Art Quintet is trailblazing its own genre. The group, led by bassist and composer Sascha Jacobsen, grew out of Classical Revolution jams at which Jacobsen would write out a new piece of music for his group to perform on the spot. His pieces seek to combine and remix elements of chamber music with rhythms and sounds from all over the world. A Musical Art Quintet composition might meld influences from Africa, Argentina, or Cuba — and even a drum machine — into a globe-hopping, dance-inspiring, gorgeous work. Classical training and a taste for evocative melodies underpin this sound, but improvisation and lively rhythms make the group's "Nuevo Chamber" music truly its own.