|Image von der Wik|
But older brother Franz was making a name for himself in Vienna and Michael was able to get some temporary gigs - substituting when the regular organist was unavailable, that sort of thing. Not bad for 12 years old.
The Haydns and the Mozarts were friends, and Wolfgang wrote a part for Michael's wife in one of his operas.
Despite my snarky (whimsical?) opening, Franz held his brother Michael in high regard - perhaps because he respected Michael's focus on religious music. Most famous of these is his requiem mass that he wrote on the death of Saltsburg Archbishop Sigismund von Schrattenbach in 1771. Both Leopold and Wolfgang Mozart were at the premier and the younger Mozart admitted that Haydn's requiem influenced his own (more famous one).
But the requiem mass is a solemn occasion - the missa pro defunctis (mass for the dead) is performed for the repose of the soul of someone recently departed. A friend of mine just passed far too young. May his soul rest easy.