Amazon.co.jp: Yamaha PSR-EW300 EPS Educational Keyboard Pack with Power Supply, X-Style Stand, Headphones, USB Cable, and Instructional Software : 楽器・音響機器
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Amazon.co.jp: Yamaha PSR-EW300 EPS Educational Keyboard Pack with Power Supply, X-Style Stand, Headphones, USB Cable, and Instructional Software : 楽器・音響機器
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