Patent ID: 8110729
Filing Date: 2012-02-07
Classification: G10D

Abstract:
1. In a stringed musical instrument which comprises: (a) two or more abutments that suspend portions of the strings, the spacing of which abutments provides desired primary string vibration frequency or tuning, wherein at least one of the abutments transmits vibrations to a soundboard or sound-amplifying structure; (b) anchors which hold the strings in place on the abutments and maintain desired string tension, and (c) adjustment means for setting string tension to provide desired base frequency or tuning, the improvement which comprises one or more of components (a), (b) and (c) having surfaces which are in contact with the strings that are formed of pyrolytic carbon as defined herein having a Bacon Anisotropy Factor (BAF) between about 1.0 and 1.5.