Yamaha AESFG The AESFG is another great example of Yamaha's dedication to the development of innovative guitars. This masterpiece is a direct result of Yamaha's collaboration with jazz/rock guitar legend Frank Gambale. With unique features such as rear-mount pickup/neck system, fretwave tuning system, and a skillfully sculpted body shape, this signature guitar ranks amongst the worlds finest. Modern Sculpted Body 22-Fret Neck w/Yamaha Rear Mount System Seymour Duncan Pickups w/ Yamaha RM System Wikenson VS100 Tremolo w/ Yamaha RM System Fretwave Fret System Sperzel Locking Tuners Black and White Gloss Finish Case Included