Why is the chorus repeated in songs?

Related questions

1. What is html5 game development?
2. What software do game designers use?
3. Why C++ is the best language?
4. Can I use Python to make games?
5. Should I learn C++ or Python?
6. What is Phaser io?
7. What language do AAA games use?
8. Are photon torpedoes possible?
9. Is Webgl an API?
10. Why are they called photon torpedoes?

Tags

1. #radio
2. #listen
3. #these
4. #chorus
5. #often
6. #people
7. #already
8. #estrange
9. #feature
10. #reason
11. #choruses
12. #processes
13. #songs
14. #secret
15. #times
16. #american
17. #plays
18. #sound
19. #repetitive
20. #repetition
21. #brain
22. #several