STAGE

‘Sing’ No More: “Mama, I Want to Sing,” New York’s longest-running black musical, closed Saturday night after an eight-year run, but the melody that lingers on is not harmonious. The gospel-music production is embroiled in a legal battle involving hundreds of thousands of dollars and described as a classic tenant-landlord dispute. Among the issues: do the producers have a legal sublease to the theater that is in a building owned by the city, and is there back rent owed from 1988? The show has played in Los Angeles twice--in 1986 and last July at the Wilshire.