Bobby McFerrin's improvisational vocal performance combines famous pieces of music, connected by the title "Ave Maria": Johann Sebastian Bach's "Prelude No. 1 in C Major, BWV 846" from "The Well-Tempered Clavier" (the foundation for Charles Gounod's "Méditation sur le premier Prélude" known as "Ave Maria") and Franz Schubert's "Ellens dritter Gesang, D. 839, Op. 52, No. 6, 1825". The performance was a part of the Swinging Bach event. Swinging Bach was an open-air late-night event that took place