The Performa Self-Tuning Guitar System. What with pitch shifters for the voice, and now self tuning instruments, we’re kind of taking away all the magic from the artist aren’t we? What price Spinal Tap now, eh? More here. Around $3000.00 plus.
The Performer is a computerized mechanical tuning system that adjusts the tensions of the strings, making it possible to keep your guitar in tune and change tuning while you play. It only adjusts string tension; nothing in the system comes between you and your amplifier.