At the See Also section, there is a link to "Mozart and scatology" explaining it. Definitely not a particular aspect of his life that they teach you in primary school Music class.
I've always enjoyed the duality of Mozart's supposed personality. We will never truly know the person so we can mostly only judge him by his works and boy can he craft a divine sound. But when you apply a personal lens to your own work I have realised that it's perfectly reasonable to distance your personality from your craft so why not also Mozart?
In any case, a reminder to check your snobbery at the door when following classical music - the musicians and composers are usually quite ordinary people with special gifts.
"...musicians and composers are usually quite ordinary people with special gifts."
Right. It's not only musicians and composers but I'd suggest that many great and famous people have stains on their characters that 'proper' society would rather disdain or not know about.
For example, Einstein's personal life was anything but harmonious given his misogynistic treatment of his wife and others. Despite the fact that we're likely not to agree with the way he conducted his personal life, those facts do not lessen any objective analysis of his scientific works.
There are several different manufacturers of these balls and the original variety is the best. When I was living in Austria I could get them almost anywhere. Now that I don't, I've never seen them except with one exception. My local Aldi store had them one Christmas except they were made in Germany and not original Salzburger Mozartkugeln.
Despite that, those who I gave some to try loved them to the extent that they whinged that Aldi only had them as its once-off special deals, so again they quickly became unavailable.
"...Vienna, where the real music scene was located."
However, even Vienna turned an eye away from Mozart's salacious Don Giovani which Prague took up the cudgels for. Even today, Prague claims itself home to the famous work (which one soon realizes after visiting there).
Duh, you'd think I could spell 'Giovanni' correctly by now. Bloody predictive spelling on smartphones is a curse. This stuff-up isn't too bad but I've posted some monumental nonsense from having missed grossly inappropriate words. (I keep telling myself to turn it off, the trouble is that it's so damn convenient, isn't it?)
It's funny that his love of poop and butt jokes might be the most accurate part of the film.
A lot of people are shocked when they learn about Leck mich im Arsch, and would probably be bowled over if they knew just how many of his pieces either have it in their titles, or in their lyrics. History has rewritten a lot of his lyrics as a result.
It seems that Robert Spaethling's book 'Mozart's Letters, Mozart's Life: Selected Letters' says most of it: https://www.theguardian.com/books/2000/sep/24/biography.musi.... I've been meaning to read it for ages and ages, reckon this story has spurred me on to add it to my next book order.
Amadeus was certainly entertaining albeit annoying for its inaccuracies. It's saving grace was F. Murray Abraham's wonderful Oscar-winning performance of Salieri.
Another aspect of the film worth noting was the fact that it was filmed in Prague before Communism finally fell, this really added to the visual character of the film. The reasons for filming there were mainly that there were no advertising billboards or hoardings anywhere to be seen across the city and the fact that under Communism there had been very little modern development in the old city which meant that its architecture was still authentically of the Enlightenment period—it'd been preserved par excellence (which was amazing given the ravages of war and the onslaught of the 20th Century).
I can attest to that, my first visit to Prague was before Communism fell and it really did look like like that. Some years later when I visited again after Communism's demise there were billboards and hoardings everywhere. The visual change came as damn horrible shock. If you want a lesson in how to make a city ugly in one easy lesson then Prague's the quintessential example.
https://en.wikipedia.org/wiki/Mozart_and_scatology