ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,853, issued on March 18.

"Electromagnetic scanning metronome" was invented by Thomas P. Caragher (Johns Creek, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromagnetic scanning metronome comprises a laser to produce a beam of light, and comprises a surface to reflect the beam of light to produce a visible line of light which extends over an image of sheet music. The metronome includes apparatus to move the laser and visible line of light from left to right with respect to the image of sheet music."

The patent was filed on March 3, 2022, under Application No. 17/803,141.

*For further information, including images, charts and tables, p...