Every Sunday during the summer a different musical group plays at the Harlem Meer in northern Central Park. http://www.centralparknyc.org/visit/things-to-do/family-community/meer-performance-festival.html
This Sunday it's the Harlem Blues and Jazz Band, so join me for some great music. Music starts at 2, but we'll need to arrive by 1:30 to get seats. There are folding chairs or you can set up a blanket on the lawn nearby. Concerts go till about 4 p.m.