More than 50 years after co-founding groundbreaking English folk-rockers Fairport Convention, Richard Thompson is still elevating his game. This fall’s dark, brooding 13 Rivers is a taut thriller. Fueled by personal and global turbulence, its muscular songs grapple with demons, mortality, bitterness, arrogance, and alienation. Caught in a world of “echoes and shadows,” Thompson, his vocals acerbic and harrowing, yearns for elusive relief in the raging opener, “The Storm Won’t Come.” Catharsis arrives via utterly brilliant guitar work, his distinctive Celtic phrasing, and fierce forays laced with nuance and fire. Logan Ledger opens.