An acoustic musical instrument a hollow body, neck, speaker, and digital audio device. A control circuit is coupled to the speaker and the digital audio device. The speaker is externally positioned on the hollow body. The digital audio player is externally positioned on the hollow body. The control circuit is communicatively coupled to a MIDI component, an electronic tuner, amplifier board, and an effects board. A plurality of light emitting diodes are positioned on the neck and coupled to the control circuit. The control circuit is configured to synchronicitously energize the LEDs with an audio file that is executed by the digital audio device. The control circuit is configured to synchronicitously energize the LEDs according to instructions received external to the acoustic musical instrument. The speaker is communicatively coupled to the amplifier board. The digital audio device captures sounds that are generated by the acoustic musical instrument.

A multifunctional guitar includes a guitar body, a handle detachably connected to the guitar body, a Bluetooth speaker, and a shock absorbing mechanism that connects the Bluetooth speaker to the guitar body.

The object of the present invention is to provide an instrument and device rack for holding or storing electronic musical instruments and/or accessory equipment, which can be expanded in a simple and modular manner as required, and also to provide universal and orderly holding and arrangement of the musical instruments and/or accessory equipment or other accessories.

1. The modular instrument and device rack (1) for holding or storing electronic musical instruments and/or accessory devices, wherein two telescopically height-adjustable T-shaped foot elements (2) are connected via a connecting bridge (3) and at least two bearing elements (4) for a storage plate (5) are detachably fastened to the connecting bridge (3), wherein at least one extension element (7) can be detachably arranged on each at least of two bearing elements (4) via a respective support element (6) at least at one height and inclination deviating from the bearing elements (4), wherein in the case of two or more extension elements (7) to be arranged one above the other, the respective extension elements (7) are arranged respectively with a common support element (6) on the respective bearing element (4).

A control device (1) for controlling the sound of an electric musical instrument has a tread plate (2) and a signal generator (3). The tread plate (2) is mounted pivotally about a first axis (4a) and is mounted pivotally about a second axis (4b). The signal generator is configured such that it generates a first electrical signal for controlling the sound and a second electrical signal for controlling the sound, the first electrical signal being the result of a rotation of the tread plate (2) about the first axis (4a) and the second electrical signal being the result of a rotation of the tread plate (2) about the second axis (4b). A control system comprises a control device of this type and the electric musical instrument.

An acoustic device includes a rotary operator and a base supporting the rotary operator so that the rotary operator is rotatable. The base includes a braking unit configured to be brought into contact with the rotary operator to cause a braking force to act on the rotary operator and an adjuster configured to adjust the braking force caused by the braking unit. The braking unit includes a plurality of contact members configured to be brought into contact with the rotary operator to cause the braking force to act on the rotary operator. The braking force acting on the rotary operator by the plurality of the contact members varies depending on an adjustment amount by the adjuster.

An acoustic device includes a rotary operator and a base supporting the rotary operator so that the rotary operator is rotatable. The base includes a braking unit configured to be brought into contact with the rotary operator to cause a braking force to act on the rotary operator and an adjuster configured to adjust the braking force caused by the braking unit. The braking unit includes a plurality of contact members configured to be brought into contact with the rotary operator to cause the braking force to act on the rotary operator. The braking force acting on the rotary operator by the plurality of the contact members varies depending on an adjustment amount by the adjuster.

An acoustic device includes a rotary operator and a base supporting the rotary operator so that the rotary operator is rotatable. The rotary operator includes a rotary body provided on the base, a pressed portion provided on the rotary body and on which a pressing operation is performed, a press detecting unit provided on the rotary body along an outer circumference of the rotary operator and configured to detect the pressing operation performed on the pressed portion, and elastic members interposed between the pressed portion and the press detecting unit.

An acoustic device includes a rotary operator and a base supporting the rotary operator so that the rotary operator is rotatable. The rotary operator includes a rotary body provided on the base, a pressed portion provided on the rotary body and on which a pressing operation is performed, a press detecting unit provided on the rotary body along an outer circumference of the rotary operator and configured to detect the pressing operation performed on the pressed portion, and elastic members interposed between the pressed portion and the press detecting unit.

A musical device includes a frame including a plurality of receptacles for receiving three-dimensional parts each having a face capable of swapping between at least two orientations in the receptacle; each part including an indexing element of the orientation of the part among at least two orientations, a plurality of detectors, each detector being associated with a receptacle to determine orientation of the part by detecting an indexing element in its receptacle, at least one audio system, inserting at least two parts into their respective receptacles triggering the sound diffusion by the audio system of at least two given music tracks simultaneously based on each of the orientations of said parts determined; the device further including a calculation system to ensure synchronization of the music tracks, soundly diffused simultaneously.

A musical device includes a frame including a plurality of receptacles for receiving three-dimensional parts each having a face capable of swapping between at least two orientations in the receptacle; each part including an indexing element of the orientation of the part among at least two orientations, a plurality of detectors, each detector being associated with a receptacle to determine orientation of the part by detecting an indexing element in its receptacle, at least one audio system, inserting at least two parts into their respective receptacles triggering the sound diffusion by the audio system of at least two given music tracks simultaneously based on each of the orientations of said parts determined; the device further including a calculation system to ensure synchronization of the music tracks, soundly diffused simultaneously.