When the Australian band Evol Walks stripped down this version of "Sleeping with a Ghost," they bravely went where no one had gone before. The ominous words and heavy music in the song are well known. The song's version from a year ago is interesting, and it gives us a sneak peek at the band's much-anticipated EP. Evol Walks is known for its raw energy and...

Seishin Takeno's "Echoes," a sonic postcard from Kanagawa. Nine instrumental pieces, I've been told. Not nine songs, mind you – more like nine shaded windows into a particular kind of quiet. This isn't music that yells; it leans in, like a friend confiding a secret you half-hear on a summer porch. Immediately, you're not so much listening as remembering. Or maybe anticipating. It feels...