Answer:
La Horde (The Horde)
Explanation:
Made in 1927, La Horde is a painting from artist Max Ernst. Hope this helps.
I am not too sure whether there were some options for the underpaid musicians, but there is something I have heard about: that they where given the opportunity to give classes or teach.
The use of perspective wasn't used during the Middle Ages because that time period was ending (5th to 15th century) when the Renaissance was just beginning (it ran from the 14th to 17th centuries) and the technique wasn't developed until the 15th century, and wasn't as popular into later on when it was more studied and the technique was more used in pieces and developed.
Mountains would be the answer to your question. Mountains are very abundant in China making not only great scenery but also beautiful artworks.