For those who always say they’re going to catch First Saturdays at the Brooklyn Museum but never think of it until the second or third Saturday, here’s your reminder: it’s tonight. An all-Islam program is headed by the Brooklyn Qawwali Party (left), a slamming 11-piece orchestra that adapts the music of Pakistani vocal giant Nusrat Fateh Ali Khan. They perform at 5 and 9:30. Also, from 9 to 11 in the parking lot, an Islamic rhythm-infused DJ dance party. Tonight’s full lineup is available here.