Yamaha MX88 Music Synthesizer 88-Key Piano Action Black Electronic Keyboard 889025109864 | eBay
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Yamaha MX88 88 Key Weighted Action Synthesizer Yamaha Portable Keyboards PIANO TOUCHThe MX88 features a Graded Hammer Standard (GHS) weighted action. GHS weighted action has a heavier response in the low keys
MX88 - Overview - Synthesizers - Synthesizers & Music Production Tools - Products - Yamaha USA
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