Inspired by Beastie Boys and De La Soul, Australian group The Avalanches packed an estimated 3500 samples into their debut album. But Since I Left You is less of a crazy quilt than it is a feather bed—a downy cushion of funk, soul, and easy-listening snippets that makes you feel like you're floating on air. It's technically instrumental, but dozens of vocal fragments—from Liza Minnelli to Sesame Street—create a bewitching siren song that drags you deep into the group's imaginary world.