Yamaha DGX-670 Virtual Clinic
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22:10
Démonstration du piano numérique YAMAHA DGX-670 - Magasins SEVENEANT MUSIQUE
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1:05:46
Yamaha DGX-670 Review
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7:48
YAMAHA DGX-670 DEMO
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23:04
The Yamaha DGX-670 is a Huge Upgrade over the DGX-660
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1:06:23
Yamaha DGX 670 vs Roland Go:Keys 5: Which Keyboard Wins?
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31:09
Why Yamaha DGX-670 is The Best Keyboard in My Collection
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1:26:14
Yamaha DGX-670 long demo | Hear It #1
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25:36