If Your Mirror Breaks is the Ex’s 19th full-length album. The band, extant since the late 1970s, has collaborated with everyone from the Mekons and Sonic Youth to Ethio-jazz saxophonist Getatchew Mekurya. Their music started in punk but has, over time, incorporated many other genres, including free jazz, noise and non-western music from Africa, Eastern Europe and the Middle East …