Why did Pink Floyd write another brick in the wall?

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Tags

1. #successful
2. #mental
3. #problems
4. #roger
5. #called
6. #caused
7. #lyric
8. #became
9. #barrett
10. #another
11. #distanced
12. #health
13. #primary
14. #waters
15. #later
16. #after
17. #brick
18. #floyd
19. #released
20. #wrote
21. #build
22. #writer
23. #single