Patent ID: 7085391

Claim:
A pickup apparatus of a piano having a stationary member and a sound source member which vibrates according to a sound of the piano, comprising: a sensor for detecting a vibration of said sound source member and a rigid sensor holding member which contacts said stationary member and said sound source member, and rigidly keeps said sensor between said stationary member and said sound source member, wherein said rigid sensor holding member has a length adjusting mechanism for rigidly adjusting a length of said sensor holding member, according to a distance between said stationary member and said sound source member, said sensor is forcibly and rigidly supported and held between said stationary member and said sound source member, upon adjustment of said length adjusting mechanism, so that a first side end of said sensor holding member contacts a stationary member side and a second side end contacts a sound source member side, and said first side end or second side end has an angle-adjusting mechanism contacting said stationery member or said sound source member such that said sensor is rigidly supported and held by said sensor holding member at an arbitrary angle between said stationery member and said sound source member, so as to optimize detection of vibration from said sound source member at the sensor.