The Studio@620 welcomes the American Singers as they perform gospel music from Passages of Martin Luther King, a play based on the late civil rights leader's letters and papers. Ray Arsenault moderates a Social Justice Round Table discussion immediately following the concert. Sun., Aug. 19, 7 p.m., Studio@620, 620 First Ave. S., St. Petersburg, $15-$20 general/$10 students and seniors, 727-895-6620, thestudioat620.com.