When Throwdown launched a dozen years ago in California, they were the definition of straight-edge hardcore. Since that time, the original quintet has pared down to a quartet, lost almost as many members as Guns N’ Roses (there are no original guys in the band these days) and steered in a decidedly more metal direction. Starting on 2005’s Vendetta, Throwdown began exhibiting harder tendencies; with 2007’s Venom & Tears and the just-released Deathless, their metal transformation is complete. Comparisons to early Metallica, Sepultura and Pantera are not far off. Old fans who bemoaned Throwdown’s sonic shift have been replaced with a louder and larger contingent who have readily embraced their new direction. Bury Your Dead, For Today, Abacabb and the World We Knew open at 7:30 p.m. at Peabody’s (2045 E. 21st Street, 216.776.4444). Tickets: $13 advance, $15 day of show. — Brian Baker