A keyboard musical instrument includes a musical instrument case including an upper case, and a lower case having a concave part provided on a lower surface and opened on an outer peripheral surface-side, and a strap pin fixing portion is arranged in the concave part.

A musical instrument system includes a sound element medium including a plurality of sound-element information areas each having sound element information on a sound element, a reader configured to read the sound element information, a generator configured to generate musical sound information based on the read sound element information, and an audio unit configured to produce a sound based on the generated musical sound information, each of the sound-element information areas having a display corresponding to the sound element information, and the sound element information relating to both or one of pitch and tone.

Finger-tracking systems and methods for virtual instruments playback. The described system tracks the position of user's ten fingers on a projection surface and can be used to play virtual instruments such as virtual piano, drums, and bells. The system tracks the movement of user's ten fingers while keeping them free of encumbrance or excessive postural constraints. More specifically, in one or more embodiments, a coded light based projector is used to send out location signal onto a flat surface, and ten light sensors are mounted on user's fingers to receive these signals and locate user's fingers. Based on their locations and relative distance to a fixed point, a printed music instrument can be used for virtual instrument music playback. With the described tracking system, various embodiments of virtual music instruments may be implemented, including a system and method for virtual piano playing as well as virtual Chinese bell playing on printed keyboard and printed Chinese bell set.

When a harmony function is on state, a generator determines a chord based on one or more notes of depressed keys in a chord kea area, automatically generates one or more additional notes having pitches which harmonizes the pitch of the note of the depressed key in a performance key area according to the determined chord, and inputs the “note of the pressed key in the performance key area+additional notes” to an assignment controller. The assignment controller assigns plural parts (timbres) to the inputted notes, and sounds the notes in timbres of the plural parts according to the assignment. That is, tone generation assignment process is performed regarding not only notes according to performance operation by a user but also automatically generated additional notes.

An electronic device includes an attaching member including a first attaching member having a first male portion protruding in a first direction from an outer circumference of the first attaching member, and a second attaching member having a first female portion corresponding to the first male portion, and an attached member to which the attaching member is attached. The attaching member includes either one of a second male portion extending in a second direction different from the first direction and a second female portion corresponding to the second male portion. The attached member includes the other of the second male portion and the second female portion.

A performance operation apparatus includes a distance sensor, an operating element and a holding portion. The distance sensor includes a first substrate and a second substrate and is configured to measure a distance between the first substrate and the second substrate. A conductor is arranged in each of the first substrate and the second substrate. The operating element is operable by an operator. The holding portion holds the first substrate between the operating element and the second substrate and is configured to move with the operating element integrally. Alternatively, a performance operation apparatus includes a distance sensor, an operating element, a first member and a holding portion. The first member is interlocked with the operating element. The holding portion holds the first substrate between the first member and the second substrate and is configured to move with the first member integrally.

A keyboard musical instrument includes a musical instrument case including an upper case, and a lower case having a concave part provided on a lower surface and opened on an outer peripheral surface-side, and a strap pin fixing portion is arranged in the concave part.

A keyboard includes a frame and a plurality of mass bodies. The mass bodies are arranged in parallel to each other. Each of the mass bodies is pivotally supported to pivot about a pivot fulcrum with respect to the frame. The mass bodies are at least one of a plurality of keys configured to be directly operated, a plurality of interlocking members configured to pivot in conjunction with a corresponding one of the plurality of keys, embedded members in the plurality of keys or embedded members in the plurality of interlocking members. At least some of the mass bodies include notched portions being arranged in order from a pitch, which is equal to or greater than a lowest pitch, to a highest pitch. The notched portions are different from each other in at least one of size, position, or distance from the pivot fulcrum.

An electronic musical instrument according to one embodiment includes playing operators specifying respective pitches, and at least one processor which is configured to execute processing of acquiring string sound data including a fundamental sound component and a harmonic tone component corresponding to a specified pitch, acquiring stroke sound waveform data that does not include the fundamental sound component and the harmonic tone component corresponding to the specified pitch but includes components other than the fundamental sound component and the harmonic tone component, and synthesizing the string sound data and stroke sound data corresponding to the stroke sound waveform data at a set ratio.

An electronic keyboard musical instrument includes a sound source configured to, in response to detection of key-pressing of the first key in damper-off detection, input first excitation signal data corresponding to the first key to a first channel, input first channel output data which is output from the first channel to each of low-register channels corresponding to the respective low-register keys, and output musical sound data which is generated based on respective pieces of low-register channel output data which is output from the respective low-register channels and the first channel output data, as musical sound data corresponding to the first key.