Out today: "Amnesiac," the latest in avant-rock noodling from the oft-compelling Radiohead. Initially called a more straightforward rock album than the band's last release, the spacey "Kid A," the new effort appears to contain more of Radiohead's hamonious muddle.

Rolling Stone gives "Amnesiac" three and a half stars, saying Radiohead is "true to the better impulses of progressive rock," while Entertainment Weekly calls it "a more frustrating, even infuriating, work" than "Kid A" and tosses it aside with a C+ grade. But Radiohead is one of rock's most ambitious and creative bands, and each new work is worth exploring.