Of course, one knows Wolfgang Amadeus Mozart. The musical genius and society eccentric. And for sure, you have hummed along some of Mozart’s songs from “Eine kleine Nachtmusik” or “The Magic Flute”. If not in the opera, then while on the phone listening to music on hold in a waiting loop. 

Yet, most likely you haven’t heard of his sister Maria Anna Mozart. And most likely, you don’t know either that Maria Anna Mozart was the original musical prodigy.