ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,857, issued on July 28.

"Selective tone shifting device" was invented by Elchanan Sharabi (Bareket, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention is directed to a tone shifting device that includes an analog to digital (A/D) converter configured to receive an audio output from a musical instrument to convert it into a digital signal and to pass it to a computing unit; an input device configured to allow a player to select at least one note to be shifted in real time during playing a musical instrument; a computing unit configured to receive the input signal from the A/D converter and a second input from the input device and to...