Korg
Boss Corporation
Yamaha Corporation
Kawai Musical Instruments
Sequential (company)
Casio
Ibanez
Oberheim Electronics
TEAC Corporation
Drum Workshop
Technics (brand)
Japanese audiovisual equipment company
roland.com
Roland Corporation is a Japanese multinational manufacturer of electronic musical instruments, electronic equipment, and software. It was founded by Ikutaro Kakehashi in Osaka on 18 April 1972. Wikipedia
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