Final answer:
Baroque musicians made a living through various patronage systems including the Church, aristocracy, and government, as well as the emerging middle class with the increased demand for music.
Step-by-step explanation:
Baroque musicians commonly made a living through patronage systems. Three major sources from which musicians could receive patronage in the Baroque era were the Church, aristocracy, and government. The Church, with its significant influence and wealth, was a major patron, commissioning works for religious services and events. Aristocrats and royalty also played a crucial role in supporting musicians, employing them to compose and perform music for court entertainment and functions. Government positions, though less common, could also provide stable employment for musicians in court or city roles. With the rise of the middle class and their desire to express status and national pride through the arts, musicians also started to find support outside of traditional patronage systems.