Keyboard: 122 keys
Polyphony: 122 notes
Roland Vk 77 1999 - 2001 ($1,500)
10 x Front panel pushbutton tact switch for Roland VK-7 VK-77 VK-88 smaller buttons ($7.33)
Roland - VK-77 , RD-100/150/170/600 , KR-375 , JV-990/1080/2080 - Power Switch ($9.90)
Roland VK 77 Panels ($75)
Roland VK 77 Power Transformer & Supply Board ($100)
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