The mellow sound of Undersea Poem makes you feel as if you are laying on a beach while holding a drink with a little umbrella in it. The duo of Chris Root and Juju Stulbach, formally of the Mosquitos, have a unique indie-pop on Quaaludes sound. If you bring a seashell to their CD release show at Joe’s Pub on April 15, you can hear the ocean. Tickets are $15. underseapoem.com.