An accordion includes a right hand play side, a left hand play side, a bellow provided between the right hand play side and the left hand play side. A plurality of columns of buttons provide on at least one of the right hand play side and the left hand play side. Each of the plurality of columns may have at least three buttons to which three single pitches are assigned, the three single pitches constituting a triad major chord. Embodiments of the present invention provide a user-friendly system for accordionists that can also cover more than 90% of the accordion songs being public in the world.

A handheld musical instrument for generating percussion sounds, the handheld musical instrument includes a body part with one or more sensors, a set of control buttons to select a type of audio output to be generated by said handheld musical instrument, and a handle part coupled to said body part, the handle part including the set of control buttons and operable between a first position and a second position.

A keyboard apparatus includes a plurality of keys, a frame supporting the plurality of keys arranged in a first direction, a first member, a longitudinal direction of the first member being along the first direction, and a second member including a first section, a second section, and a third section, the first section, the third section, and the second section being arranged in this order in a second direction perpendicular to the first direction, the first section being a plate-shaped member sandwiched between the first member and the frame, the second section being connected to the first member at a position away from the first section, the third section being separated from the first member between the first section and the second section, and a longitudinal direction of the second member being along the first direction.

A modulating keyboard having a relative transposition in an electronic keyboard musical instrument and a method for relative transposition are provided. An instrument includes a keyboard having a plurality of first keys alternating with a plurality of second keys and a modulator system coupled to the keyboard. The modulator system is configured to assign note values to each of the first keys and the second keys such that, for each key signature, notes associated with the key signature are assigned to the plurality of first keys and notes not in the key signature are assigned to the plurality of second keys.

A musical instrument including a note player operable to produce individual notes in a selected key, wherein a layout of the note player corresponds to a selected chord, in which three finger regions of the note player correspond to a root note, a third note, and a fifth note of the selected chord in the selected key.

A musical instrument including a note player operable to produce individual notes in a selected key, wherein a layout of the note player corresponds to a selected chord, in which three finger regions of the note player correspond to a root note, a third note, and a fifth note of the selected chord in the selected key.

A musical instrument with two or more classes of pitches where at least one class is a diminished chord extended over an arbitrary number of octaves, and another class is another chord extended over the same span of octaves. The pitches of the second class of pitches are interlaced with the pitches of the diminished chord of the first class of pitches. Additional classes are chords similarly interlaced with other classes, with one class of any interlaced pair of classes being a diminished chord.

Systems and processes that use MIDI mapping technology for multiple chord and arpeggio triggering are disclosed, including a multiple chord and arpeggio triggering MIDI mapping system and process that assigns, selects, and records chord and multi-arpeggio functions into a digital audio workstation (DAW) host program or an internalized sequencer and a two-phase multiple chord and time-delayed arpeggio triggering MIDI mapping process for recording a chord progression and enabling multi-arpeggio functions of the chords in the chord progression to be worked on at any time-delayed instance after recording the chord progression. The system divides output from a MIDI controller into chord generators and arpeggiators to allow users to define full chords with a single key selection, while also making immediate or time-delayed single key selections for different arpeggios.

A step sequencer with a four by sixteen grid of buttons is disclosed. The sequencer is used to generate patterns of sounds on different channels. The sequencer can be used as a hardware controller to control music production software. The grid of the sequencer emulates the virtual grid generated in a graphical user interface by the music production software. The grid of the hardware controller is used to control the corresponding grid on the graphical user interface.

A gaming platform including a touch panel having a contact surface that a user may contact to operate the gaming platform to perform a gaming function. A plurality of touch regions divides the contact surface into a plurality of discrete regions. Each touch region may correspond to a different gaming function such that contacting the contact surface of the touch panel within a particular touch region causes the gaming platform to perform a corresponding gaming function. The gaming platform may include a plurality of touch regions each corresponding to the gaming platform playing a different musical note. In this configuration, each touch region may correspond to a key, string, striking surface, or other musical part for playing a particular musical note.