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This is a list of Yamaha signature instruments, the signature instruments have been developed by Yamaha together with the artists, some from the ground up while others are based on standard models.

The Yamaha AES620 SH was the former signature guitar of former Van Halen and current Chickenfoot vocalist Sammy Hagar. The guitar was designed by Hagar together with Yamaha's custom shop in Hollywood California and based on the AES620 with modifications designed by Hagar. The solid body guitar is fitted with two humbuckers, the neck being a standards Yamaha model and the bridge pickup being a Seymour Duncan JB model both being controlled by separate volume controls and a single tone control. The rosewood fretboard also features a Cabo Wabo inlay at the 12th fret. He has recently switched to Gibson guitars, releasing 2 new signature guitars with them.

The Yamaha CV820 WB was the former signature guitar for current Limp Bizkit and Black Light Burns guitarist Wes Borland. During his early career with Limp Bizkit, Borland was endorsed by Ibanez but decided to end the collaboration, since Ibanez wanted him to modify one of their current guitars and market as a Wes Borland signature, while Wes himself wanted to be able to design a guitar from the ground up to create his own dream guitar. After leaving, Wes played PRS for a short time before starting his current collaboration with Yamaha guitars.

The semi-hollow guitar is developed by Borland and Yamaha luthier John Gadesi, and built using the Japanese method Takumi-Kezuri (translates to "skillful carving"), which means that the back, the sides and the center-block is constructed out of one piece of alder and fitted with a maple top. The design for the body of the guitar is done by Borland several years earlier, but not made into reality until his partnership with Yamaha. Since leaving Limp Bizkit Wes moved more towards vintage and semi-hollow body guitars since he likes their resonance and he claims they feel more alive. The guitar is fitted with a three-piece maple neck with a 24 fret rosewood fretboard without markers. The guitar is equipped with two splitfield humbuckers which are controlled by a three way toggle switch and wired straight to two separate volume controls and without any tone controls. He has recently switched to Jackson guitars.

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Wikipedia