Abstract: A keyboard musical instrument is provided which comprises a main body which has a playing position and an upright position and first and second legs which are positioned on the front and rear of the main body for supporting the main body in the playing position. A hinge device connects the main body and the first legs such that the main body is pivoted about the hinge means for moving the main body between the playing position and the upright position.

Abstract: A pickup for an electric string type instrument comprising an elongated piezo-electric member formed by mixing a high molecular material with piezo-electric ceramic powder and a vulcanizing or cross-linking agent and then vulcanizing or cross-linking the mixture. In order to complete the pickup a pair of electrodes are mounted on the elongated member and the member is then subjected to a polarization treatment. The piezo-electric member can be formed as a flat belt-shaped member with the electrodes mounted on both surfaces thereof or it can be formed as a cylinder in which one of the electrodes extends axially in the piezo-electric member and the other electrode is mounted on the outer periphery of the piezo-electric member. A plurality of the pickups can be joined in parallel relation within an elastic support and the latter can be mounted between the strings and the frame of the string instrument through the intermediary of a bridge member.

Abstract: An electric piano having a casing provided with a frame made as a casting or the like with a plurality of strings stretched on the piano and supported at intermediate portions by a bridge member. A plurality of hammers driven by respective keys strikes the strings and pickups are provided for detecting vibrations of the strings. An amplifier is connected to the pickups and a speaker is connected to the amplifier. The bridge member is supported on supporting members attached to the frame through shock absorbing members of rubber or the like, and the pickups are constituted by piezoelectric elements mounted at any desired position in the supporting members.