A folding marimba may include a plurality of rails, a plurality of natural bars suspended from some of the rails, and a plurality of accidental bars suspended from some of the rails. In some embodiments, the rails may be mounted to resonator panels. The rails and/or the resonator panels may be configured for hinged rotation such that the marimba is configurable in an unfolded position having a first length and a folded position having a second length that is less than the first length. For example, the second length may be about half of the first length.

A folding marimba may include a plurality of rails, a plurality of natural bars suspended from some of the rails, and a plurality of accidental bars suspended from some of the rails. In some embodiments, the rails may be mounted to resonator panels. The rails and/or the resonator panels may be configured for hinged rotation such that the marimba is configurable in an unfolded position having a first length and a folded position having a second length that is less than the first length. For example, the second length may be about half of the first length.

A foot percussion device can include a rigid board defining an upper surface and a lower surface distal from the upper surface; a spacer secured to and extending from the lower surface of the board, the spacer being compressible and defining a height before compression, the spacer configured to isolate the board from contact with a floor surface on which the device is placed; an audio jack; and a sensor in contact with and secured to one of the upper surface and the lower surface of the board, the sensor configured to convert mechanical vibrations in the board to electrical signals transmittable through the audio jack.

A foot percussion device can include a rigid board defining an upper surface and a lower surface distal from the upper surface; a spacer secured to and extending from the lower surface of the board, the spacer being compressible and defining a height before compression, the spacer configured to isolate the board from contact with a floor surface on which the device is placed; an audio jack; and a sensor in contact with and secured to one of the upper surface and the lower surface of the board, the sensor configured to convert mechanical vibrations in the board to electrical signals transmittable through the audio jack.

A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

A method for assisting a user in tuning a drum comprising the steps of: considering a strike on the drum whereby the strike is detected in a sensor signal in at least one of following domains: a time domain, a frequency domain, a complex domain; recording a first sound fragment of the strike; converting the first sound fragment from the time domain to the frequency domain; analyzing the first sound fragment in order to detect a fundamental tone with fundamental tone frequency of the drum; calculating an overtone frequency or overtone frequency range of a first overtone of the drum by means of a predetermined algorithm related to the fundamental tone frequency; setting a filter with a pass frequency band covering the calculated overtone frequency or overtone frequency range; and indicating, via a user interface, at each further strike when the frequency of the first overtone detected in the pass frequency band is higher or lower than a target overtone frequency.

The present invention provides an electronic percussion melody musical instrument, comprising: a key module including a plurality of keys each arranged to receive a knock from the outside, and a plurality of energy conversion units each configured to sense mechanical energy generated by the knocking of the key and convert the mechanical energy into electrical energy in the form of an electrical signal; a storage unit configured to store sound source data associated with the plurality of keys; an output unit configured to output a sound signal corresponding to the sound source data; and a control unit configured to: receive the electrical signal from the energy conversion unit; acquire the sound source data associated with the electrical signal from the storage unit according to the electrical signal; and control e output unit to output the sound signal corresponding to the sound source data.

Electric, Electro Acoustic or Acoustic Drum with Internal Wiring Harness is disclosed herein. The drum comprises an internal wiring harness configuration. The internal wiring harness configuration comprises a plurality of first audio jacks that are mounted on an internal surface of the drum. The internal wiring harness configuration further comprises a connector assembly configuration comprising a plurality of second audio jacks and a multi-pin connector mounted on an external surface of the bass drum. Such configuration eliminates long cables and cumbersome wiring and provides a more natural and desirable connection to external processing.

Electric, Electro Acoustic or Acoustic Drum with Internal Wiring Harness is disclosed herein. The drum comprises an internal wiring harness configuration. The internal wiring harness configuration comprises a plurality of first audio jacks that are mounted on an internal surface of the drum. The internal wiring harness configuration further comprises a connector assembly configuration comprising a plurality of second audio jacks and a multi-pin connector mounted on an external surface of the bass drum. Such configuration eliminates long cables and cumbersome wiring and provides a more natural and desirable connection to external processing.

An electronic-drum module for connection to one or more electronic-drum pads is provided. The module includes an electronic display, a memory storing audio files for playback when the playback is triggered by a signal received from a pad, and one or more processors coupled to the electronic display and the memory. The processors are configured to play a portion of the audio files when the playback is triggered by the signal received from the one or more electronic-drum pads. The processors are also configured to display, on the display, a user interface for an application, which includes a waveform associated with recorded audio. The processors are also configured to display, on the display, tempo gridlines with a tempo-gridline spacing over the waveform. The module includes a control for adjusting the tempo-gridline spacing. The control is a wheel and is actuated by a rotation of the wheel.