Stream music and podcasts FREE on Amazon Music. No credit card required.Listen free 1. Porgy and Bess, Act 2, Scene 4: "Oh dere's somebody knockin' at de do'" (Peter, Maria, Lily, Mingo, Bess, Chorus)Mervin Wallace/Marietta Simpson/Maureen Braithwaite/Barrington Coleman/Linda Thompson/London Philharmonic Orchestra/Sir Simon Rattle [feat. Glyndebourne Festival Chorus, Barrington Coleman, Cynthia Haymon, Marietta Simpson, Maureen Brathwaite & Mervin Wallace] 
