From LivingPianos.

https://livingpianos.com/how-mozart-broke-the-rules/

Welcome to LivingPianos.com, I’m Robert Estrin. The subject today is about how Mozart broke the rules. Did Mozart really break the rules? What do I mean by that? It’s a funny thing that we, in retrospect, analyze music from hundreds of years ago, and come up with the forms these great composers composed in.

Special thanks to Virtual Sheet Music
www.VirtualSheetMusic.com