using electrified strings, e.g. strings carrying coded or AC signals for transducing, sustain, fret length or fingering detection

Full Title

Input/output interfacing specifically adapted for electrophonic musical tools or instruments > User input interfaces for electrophonic musical instruments > for string input, i.e. special characteristics in string composition or use for sensing purposes, e.g. causing the string to become its own sensor > using electrified strings, e.g. strings carrying coded or AC signals for transducing, sustain, fret length or fingering detection