Harp offering variable note sequence comprises main body as center of stand and fitted with adjustable bars traveled by ball larger in diameter than bar spacing.

摘要

A number of bars (2) are set adjustably in a main body (1) at set spacing so the body forms the guide for a ball rolling on the bars and itself larger in diameter than the bar spacing. Body (1) forms the center of part of a U-shaped resonator and is swivel-mounted on a stand whose legs (4a,4b) and their strips (5) make up an L-section in which the strips (5) define the interior of the U-shaped resonator. In this the opposing surfaces in the leg (4b) form a track for the ball, supplemented by the parts formed by the strips (5). Endstops (6) fitted to the ends of the leg (4a,4b) are spaced from the last bar (2) by more than one ball diameter.