Countless songwriters only scratch the surface of love as a connective human experience. Sumac transcends that trope on Love In Shadow. The post-metal power trio pushes itself to its compositional limit on its third LP, pouring all of its primal passion into an erratic rumination on a cornerstone of consciousness.…

Photos: Joaquin Cabello SAN FRANCISCO — Neurosis, the avant-garde Oakland band that has quietly influenced metal bands for more than 20 years, demonstrated the diversity of the metal genre Wednesday at the Great American Music Hall. Neurosis is a legend in the underground metal scene. Despite influencing many contemporaries, it itself hasn’t received…