The Melodians bring Jamaican warmth to Crosstown Station tonight

If you’ve heard of the Melodians, it’s most likely because — like most members of Generation Y who enjoy smoking weed — you’ve heard “Rivers of Babylon.” (It’s the closing track on Sublime’s 40 Oz. to Freedom.) The Melodians, though, were jamming a long time before the members of Sublime toked their first joints. The Jamaican reggae act has been making music since the early 1960s, putting out track after track of sweetly melodic, gently bouncing island music.