Ya yi wa John Williams "Air da kuma Simple Gifts" a
bikin rantsar da Barack Obama a ranar 20 ga Janairu, 2009, tare da Itzhak Perlman (violin), Gabriela Montero (piano), da kuma Anthony McGill (clarinet). Duk da yake ƙungiyar ta yi wasa kai tsaye, kiɗan, wanda aka buga a lokaci guda a kan masu magana da talabijin, rikodi ne da aka yi kwanaki biyu da suka gabata saboda damuwa game da yanayin sanyi da ke lalata kayan aikin. An ambaci Ma yana cewa, "Babu wani zaɓi da za a yi. Na yi sanyi sosai".