CU on record and music books. Man looking at books in the Music Division of the LOC. CU on a music score of a Bach Concerto and Mozart quintet, and a Beethoven written note and handwritten score of string quartet. Panning shot of reading room and different researchers - CU on Coolidge Auditorium sign where the Budapest string quartet is playing the LOC collection of Stradivarius instruments to an audience in the auditorium. Different angles of the concert to show audience and performers - including a CU of the quartet.