Abstract: In an implementation of this invention, a stringed musical instrument has a resonator comprised of a bridge and a soundboard. Vibrations from the strings are transmitted through the bridge to the soundboard. A plurality of sensors are attached to or embedded in the soundboard. The sensors measure primarily the vibrations of the soundboard, rather than primarily the vibrations of the strings. Preferably, three or more sensors are used. Piezoelectric sensors sample vibrations in the soundboard. The resonator includes a printed circuit board that amplifies the signal from each sensor separately. Also, a signal processing device that is “onboard” the musical instrument processes the separate input signals to create one output signal. The resonator may be easily removed, enabling resonators to be interchanged. Also, the physical characteristics of a particular resonator, such as its mass or its boundary condition, may be adjusted, thereby changing the acoustic qualities of the soundboard.

Abstract: A portable instrument stand has a base, two legs retractably mounted in the base, two arms foldably mounted in the base and a main cover mounted pivotally on the base. While unfolding the instrument stand, the legs, the main cover and the arms are sequentially unfolded in the base to allow a guitar or the like to be held on the arms. While folding the instrument stand, the arms and the legs are respectively stored in the base and the main cover is mounted on the base. The instrument stand is light, aesthetically pleasing, and has no sharp protrusions that may damage instruments being carried with the instrument stand or a person carrying the stand so is convenient.

Abstract: A carrier for holding a bass drum with two first connection mechanisms and one second connection mechanism. The second connection mechanism includes a connection member, which is arranged on the bass drum, and a slide member, which is arranged on the carrier. The distal end of the slide member is engaged with the connection member. Each first connection mechanism includes a hook receptacle, which is arranged on the bass drum and open in a downward direction, and a hook, which is arranged on the carrier and inserted in the receptacle.

Abstract: The invention relates to a sound body for a stringed instrument, having an upper backframe (6) designed as a frame, to which a soundboard (4) is adhesively bonded, and on which there are provided at least one bridge (8) extending approximately diagonally and a cast frame provided with a set of strings, and having a lower backframe which is arranged under the upper backframe (6) and is connected thereto. In order largely to maintain the once predefined tuning, even during fluctuations in the climatic conditions in a room, the invention proposes that the upper backframe (6) be connected to the lower backframe (16) only in its diagonally opposite connection regions (18a, 18b) facing the ends of said bridge (8), but have a clear spacing from the lower backframe (16) in the remaining edge regions (12a, 12b).

Abstract: A support structure is provided for supporting a sound board of an upright piano. A peripheral portion of the sound board is securely fixed to a sound board bearing shim, which is securely fixed to a back frame. The back frame is constructed by a plurality of posts, beams and a bottom sill. A pin block is attached to an upper portion of the main body of the upright piano above the sound board bearing shim. A support member is provided between the pin block and back frame and is made of the material having a high rigidity. An extending portion extends downwardly from a lower end of the support member. A front surface of the extending portion is attached to an upper portion of the sound board bearing shim. Herein, a thinned portion is formed by cutting a back portion of the extending portion. The extending portion is formed as an integral part of the support member but is different from the support member in thickness. So, the extending portion separates from the back frame.

Abstract: An accessory kit for use with a piano of the grand or baby-grand type. The accessory kit includes a dolly which can support a piano in addition to supporting a footrest railing in a surrounding relationship to the legs of the piano, and a removable counter top or bar that can be mounted to the sound box of the piano. With the accessory kit patrons can sit around the piano and sing along while consuming their drinks and food in comfort.

Abstract: A stand structure for a keyed instrument having a main body with a keyboard at the front thereof, the stand structure including a first side plate and a second side plate, the first side plate and the second side plate being adapted for supporting at least a lower portion of the main body arranged between the first side plate and the second side plate; a back plate arranged between the first side and the second side plate for reinforcing the first side and the second side plate, the back plate being adapted to be arranged below the main body; a first single securing member adapted for interconnecting the main body, the back plate and the first side plate; a second single securing member adapted for interconnecting the main body, the back plate and the second side plate; and a pair of screw means, each of the pair of screw means being adapted for extending laterally through one of the first side plate and the second side plate and into the lower portion of the main body so as to secure the main body to the one