An acoustic tool composed of a sounding package with one string and a movable bridge, familiar with learn musical shades.
A musical instrument for tinkering with the mathematical relations of music sounds, comprising a single string stretched between two bridges, one or both of which may be relocated, and which stay upon a graduated guideline for the intended purpose of altering and calculating the size of the the main string between them.
a musical instrument for experimenting upon the mathematical relations of music noises. It includes one sequence stretched between two bridges, one or each of that are movable, and which stand upon a graduated rule for the true purpose of readily switching and calculating the size of the the main sequence among them.
An acoustical tool, invented at an extremely very early day in Egypt or Greece, composed of an extended resonance-box over which one string of instinct or wire is stretched, the vibrating size, and so the pitch, that is fixed by a movable bridge.