Steve Vai and Ibanez have revealed “The Hydra.” This one-of-a-kind instrument is the realized vision of a collaboration that’s been five years in the making.  It is a beast of an instrument – a one-bodied, two-headstock-ed, three-neck-ed creature that encompasses, among other things: 7 and 12-string guitars; a 4-string ¾ scale length bass; 13 sympathetic harp strings; half-fretless necks; single-coil, humbucking, piezo, MIDI and sustainer pickups; floating and hardtail tremolo bridges; phase splitters; and much, much more.