Following a sold-out run at Manhattan Theater Company’s Studio at Stage II, “Murder Ballad,” featuring music and lyrics by Juliana Nash, an indie rock singer-songwriter who lives in Amagansett, will transfer to the Union Square Theater for a nine-week engagement. The musical will feature three of the cast members from its M.T.C. run, John Ellison Conlee, Rebecca Naomi Jones, and Will Swenson. Caissie Levy will join them in the role of Sara. The musical has received five Lucille Lortel nominations, including best musical. Performances will resume at the Union Square Theatre on May 7, with a press opening set for May 22. A cast album will soon be released from Yellow Sound Label. Tickets for the Union Square Theater engagement are available via ticketmaster.com.