Sick of keyboardists having all of the fun? Wanna add some interesting and amazing tones to your acoustic guitar? Then you need a Graph Tech ghost Acoustic MIDI System. This version of the ghost Acoustic MIDI System is specifically designed for nylon string guitars, turning your favorite instrument into, well... every one instrument. What does it do? Simple. The ghost Acoustic MIDI System listens to each of your strings and turns the pitch into a hex-based signal that MIDI converter (like the ones Roland makes) can understand. And it does it REALLY REALLY WELL. Here's what you get: a set of six ghost loaded 1/8" pickups designed for nylon string acoustic guitars, a Hexpander preamp board with an on-board 13-pin jack, an Acoustic Tone control preamp board, and all of the goodies you need to mount it all right. With a Graph Tech ghost Acoustic MIDI System installed in your acoustic guitar and a MIDI converter, you can control synths, virtual guitar systems, software, and more!