How many octaves could Elvis sing?

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Tags

1. #octaves
2. #least
3. #singer
4. #third
5. #calculating
6. #words
7. #tenor
8. #extension
9. #falsetto
10. #american
11. #baritone
12. #music
13. #upward
14. #range
15. #critic
16. #ronstadt
17. #elvis
18. #presley
19. #linda