Bjork’s upcoming album will be iPad-centric. (AP Photo/Achmad Ibrahim)

Bjork: “Crystalline”

This sure-footed stunner of a track is the first single from the Icelandic singer’s September release, “Biophilia,” a multimedia collection of music and iPad apps.

Premonition 13: “La Hechicera de la Jeringa”

Early Black Sabbath meets later King Crimson on the new project from Scott “Wino” Weinrich, onetime frontman of beloved Potomac doom metal outfit the Obsessed (its title translates to “The Sorceress of the Syringe”).

Special Club featuring Elin Kastlander: “Celebris”

The mysterious new Special Club may be a side project of Weezy-loving Swedish duo jj (the presence of jj’s Kastlander would certainly suggest this). It may be jj in disguise for some reason or something else entirely. Either way, they’ve served up the summer’s dreamiest monster jam.

Lydia Loveless: “Can’t Change Me”

The 20-year-old Loveless manages to conjure up both Exene and Neko Case on this fiery track from her upcoming “Indestructible Machine.”

Archers of Loaf: “What Did You Expect”

The croaky, newly reunited indie rockers are re-releasing their beloved-in-retrospect “Icky Mettle,” with this extravagantly clangorous, out-of-print 1994 single as a bonus track.