Not much is known about Agnesi’s life after she married Pier Antonio Pinottini and took his name, and much of her music is either lost or undated. However, we do know that she received generous compositional patronage from Holy Roman Empress, Maria Theresia Walburga Amalia Christina, and another female noble composer, Maria Antonia Walpurgis. The Holy Roman Empress apparently sung Agnesi Pinottini’s music publicly. There is a story that Agnes Pinottini was part of an organizational committee that invited the 14-year old Mozart to play in Milan in 1770 and present at his performance. She composed some operas, as well as quite a bit of keyboard and vocal music for small chamber ensembles.
I’m not surprised that creative feedback makes a difference; it’s the kind of feedback I wished I got from my own music teachers, not to mention my peers.