Gospel and Classical

The Southampton Cultural Center will present “Mama’s Diary,” a gospel musical written and directed by Tramar Pettaway, tomorrow at 8 p.m. The show is the prequel to “Mama’s Last Song,” which was written by Mr. Pettaway in memory of his mother and performed in Southampton in 2014. Tickets are $15.

On Saturday at 6 p.m., Liliane Questel, director of the center’s Rising Stars Piano Series, and Konstantin Souk­hovetski, a board member, will host a benefit to celebrate the series. The event will include a silent auction, champagne, and cameo performances by Pianofest artists. Admission is $40.