9 p.m., Revolution. $10.
Keith Richards called “In Dis Ya Time,” the bright, swaying, signature song of the Itals, the “perfect reggae song.” And you know, Keif knows a thing or three about (appropriating) African-rooted music, so don't take that endorsement lightly. For more than three decades, even when dancehall took over the airwaves, the Itals have represented for roots reggae in Jamaica. Named for a Rastafarian term for “natural” and “pure,” the group made their bones on three-part vocal harmonies, singing songs about Jah, dreads and other Rastafari tenets familiar, at least superficially, to anyone who's been in a college dorm recently. Internationally known reggae acts don't come this way often. If you rock steady, you'd be ill advised to miss this gig.