Abstract: A portable musical instrument scanning system for performing fast and accurate quality control (QC) assessment and diagnosis for stringed instruments, including but not limited to guitars. In some embodiments, the musical instrument scanning system includes a musical instrument holder or stand with an integrated or coupled scanner, a computing device including a display unit configured for wired or wireless communication with the scanner, and a software application program (or “app”) stored on and executable by the computing device.

Abstract: A method and device for optimizing the position of the strings on stringed and plucked instruments, especially guitars, and for improving the playability of such instruments. The instruments include strings which are stretched across a fretted or fretless fingerboard, wherein the profile of the fingerboard surface is measured underneath each individual tightened string. The optimum form of the fingerboard surface is determined for each string by a computer on the basis of string parameters, the aim being to keep the distance between the strings and the fret surfaces to a minimum without impeding the vibration of the strings. Subsequently, the differences between the calculated and real fingerboard surface profiles are compensated by a computer-controlled machine. The instrument which is tuned with high precision and adjusted to a minimum string position is characterized by excellent playability and clear intonation.