Mozart led a pretty rough life, and only wrote one piece in a minor key. There's a half glass full kind of guy. They also found one of his early draft for a sonata. Turns out, start to finish, there was not one error, edit, Nothing!! That ain't just coming from him.
The real sob story is Schubert - not our beloved A'gon Schubert, but the real one. "Every night when I go to bed I hope I may not wake... I live without pleasure or friends." He considered his composition "useless". I wonder if he was an audiophile as well?
You know why? Ludwig Van. Shubert felt so inferior to Beethoven. He asked, and was, to be buried next to him. Talk about low self esteem. Shit, if they only had Zanax back then, Franz would have been seeing the glass half full.