Answer:
Shift from optical-art to construct-painting
Explanation:
The shift from painting "what one sees" to a painting of "what one thinks about what one sees" describes shift from optical-art to construct-painting.
Bela Bartok was greatly known for his music and was also a leading scholar of the folk music in his native land.
The instrument described is a clavichord.
Although not very popular nowadays, it was important between the 15th and the 19th century. In popular music, variations of it can be found in songs by artists such as Stevie Wonder and Bjork, but they mostly used the electric version of the instrument.
Answer:
you didnt put an example ;-;
Explanation: