公开(公告)号：US20230298543A1

公开(公告)日：2023-09-21

申请号：US18014034

申请日：2021-07-06

Applicant: Kari IKONEN

Inventor： Kari IKONEN

IPC: G10C3/10 ,  G10C9/00 ,  G10C1/00

CPC classification number: G10C3/10 ,  G10C9/00 ,  G10C1/00

Abstract: The invention is a micro-tuning device for pianos and other keyboard-operated stringed musical instruments. A mass is secured to a single string or choir of strings in the musical instrument by an attachment device between the bridge and the agraffe, nut or V-bar, thereby reducing the speaking length and increasing the pitch of the string.