What was the first xylophone made of?

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Tags

1. #across
2. #wooden
3. #exists
4. #originated
5. #three
6. #slabs
7. #resonating
8. #simple
9. #supports
10. #earth
11. #player
12. #oceania
13. #southeast
14. #forms
15. #xylophone
16. #possibly
17. #chamber
18. #today