A ROSAS BY ANY OTHER NAME: French maestro Louis Langree’s second season at the helm of Lincoln Center’s monthlong Mostly Mozart Festival comes to a conclusion this weekend, featuring dance performances tonight and tomorrow night by the avant-garde Belgian choreographer Anne Teresa De Keersmaeker and her company, Rosas. They will perform De Keersmaeker’s “Mozart/Concert Arias, un moto di gioia” (1992) – a full-evening work set to Mozart concert arias, cassations and serenades, which has the dancers interacting with the singers in a dance/music examination of the relationship between the sexes. Gregory Vajda conducts the Orchestra of St. Luke’s, and the three participating sopranos are Patrizia Biccire, Anke Hermann and Olga Pasichnyk. La Guardia Concert Hall, Lincoln Center, 65th Street and Amsterdam Avenue; (212) 721-6500.