Lost and Found

Host John Schaefer is back with "Mr. Bongo." That's the name of a record label that specializes in Brazilian dance music. Its founder, David Buttle, has used the label to spread the word about his humanitarian work in slums in Brazil and South Africa. Buttle joins us on the show. Also: A librarian in Pennsylvania was cleaning out a cabinet and made quite a find: a Beethoven manuscript. It's the only complete manuscript source for the piano version of his "Grosse Fuge" and today we take a look at it with Dr. Jeffrey Kallberg, a musicologist at the University of Pennsylvania. Finally, a review of "Ayre," the new song cycle by Argentinean-born composer Osvaldo Golijov with Billboard columnist Anastasia Tsioulcas.