Noor Theatre is casting four singing roles for a new play with songs called “Dead Are My People.” The show is being produced at New York Theatre Workshop’s Next Door. The play is written by Ismail Khalidi (“Tennis in Nablus”), with original compositions by Hadi Eldebek (Yo-Yo Ma’s Silk Road Ensemble) and direction by Leah Gardiner (“The Loneliness of the Long Distance Runner&…