EVENTS

New Haarlem Arts Theater: 'Ma Rainey's Black Bottom' (Thursday through July 8) This play explores the blues and race relations in America, Thursday through Saturdays at 7 p.m., Saturdays and Sundays at 2 p.m. With an opening reception on June 16th. Aaron Davis Hall, Theater B, 135th Street and Convent Avenue, Harlem; $30; $25 for 60 and over; $15 for students, $10 with CUNY ID; reception and performance on June 16th is $100. (212) 868-4444, newhaarlemartstheatre.org.   Elastic City Walking Tour: Unchanged When Exhumed (Saturday) An innovative approach to the walking tour, participants will travel the route of Hamilton Grange's move around Harlem using a smartphone application that transforms the walk into a virtual set; a smartphone — iPhone or Android — is required. At 4 and 6 p.m., meeting outside Cafe One, 1619 Amsterdam Avenue, Manhattan, elastic-city.org; free. Spanish Harlem Salsa Tour (daily) This tour focuses on the neighborhood's cultural roots and includes stops at botanicas and the homes of noted musicians. Led by Jose Obando, an ethnomusicologist, the tour meets at 10 a.m. And 6 p.m. On the southwest corner of Fifth Avenue and 110th Street; $25; reservations,lubonacorp@yahoo.com. Bike Tour of Historic Morningside Heights (Sunday) Participants will meet at 10 a.m. At St. John the Divine for this tour, which is being sponsored by the Morningside Heights Historic District Committee. 1047 Amsterdam Avenue, at 112th Street, Morningside Heights, morningsideheights.org; $10.