Patent ID: 9679543
Date: 2017-06-13
CPC Classifications: G09B,G10D

Claim:
1. A musical instrument comprising: (a) a body having a top surface, a portion of the top surface being disposed in a plane; (b) a neck extending from the body along a longitudinal direction and having a center axis; (c) a plurality of strings having a vibration length extending along the body and the neck in a longitudinal direction; and (d) a concave fingerboard extending along the longitudinal direction on the neck, the concave fingerboard defining a concave surface, the concave surface having a central axis extending along the longitudinal direction, the central axis located at a maximum depth of the concave surface at each location along the longitudinal direction and the concave surface being symmetrical about the central axis, the concave surface laterally bounded by higher opposing edges, the opposing edges extending along the longitudinal direction, wherein each of the opposing edges is equally spaced from the plane at a given position along the longitudinal direction.