Final answer:
The proper chronological order of musical style periods is: Middle Ages, Renaissance, Baroque, Classical, Romantic, twentieth century.
Step-by-step explanation:
The proper chronological order of musical style periods is:
- Middle Ages
- Renaissance
- Baroque
- Classical
- Romantic
- Twentieth century
This means that the correct answer is option 3: Middle Ages, Renaissance, Baroque, Classical, Romantic, twentieth century.