A computer-implemented information processing method includes: determining, based on musical instrument information indicative of a musical instrument, a target part of a body of a first player, the first player playing the musical instrument indicated by the musical instrument information; and acquiring image information indicative of imagery of the determined target part.

A computer-implemented information processing method includes receiving image information indicative of imagery of a first player using a musical instrument, and determining comment information indicative of a comment for the first player based on the image information.

A computer-implemented information processing method includes receiving image information indicative of imagery of a first player using a musical instrument, and determining comment information indicative of a comment for the first player based on the image information.

A vocal training device comprises a generally cylindrical hollow body. The generally cylindrical hollow body has a first open end, a second open end, a first tube member and a second tube member. The second tube member is configured to be telescopically inserted into the first tube member, such that the length of the generally cylindrical hollow body of the vocal training device is adjustable. The vocal training device also has a connector having a portion that is configured for removable connection to the second open end of the generally cylindrical hollow body of the vocal training device and a portion configured for removable connection to a vocal training attachment member. The vocal training attachment member can be an aperture reducing attachment, a variable aperture reducing attachment, a breath visualisation attachment, a water resistance voice therapy training attachment or an oscillating resistance generator.

Provided is an information processing device including an acquisition unit that acquires subjective evaluation information from a second user about each performance performed by at least part of a body of a first user moving, a learning unit that performs machine learning on a relationship between the each performance and the corresponding subjective evaluation information and generates relationship information between the each performance and the corresponding subjective evaluation information, and a presentation unit that presents feedback information to the second user based on the relationship information.

Provided is an information processing device including an acquisition unit that acquires subjective evaluation information from a second user about each performance performed by at least part of a body of a first user moving, a learning unit that performs machine learning on a relationship between the each performance and the corresponding subjective evaluation information and generates relationship information between the each performance and the corresponding subjective evaluation information, and a presentation unit that presents feedback information to the second user based on the relationship information.

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.

Systems, devices, media, and methods are described for presenting a tutorial in augmented reality on the display of a smart eyewear device. The system includes a marker registration utility for setting a marker on a musical instrument, a localization utility for locating the eyewear device relative to the marker location and the instrument, a virtual object rendering utility for presenting a series of virtual tutorial objects on the display near one or more actuators on the instrument, and a hand tracking utility for tracking the performer's finger locations in real time during playback of a song file. A high-definition video camera captures sequences of frames of video data. The series of virtual tutorial objects, in one example, includes graphical elements presented on a virtual scroll that appears to move toward the instrument at a speed correlated with the song tempo. The hand tracking utility calculates a set of expected fingertip coordinates based on a detected hand shape and a library of hand poses and landmarks.

There is provided an information processing device, an information processing method and a program that provide, as feedback to a user, information based on a level of collaboration of multiple movement elements in a performance provided by collaborative or non-collaborative moves of multiple parts of a body of the user and that are usable to support mastering a performance. The information processing device includes a sensing data acquisition unit configured to acquire multiple sets of sensing data from at least one sensors configured to sense a condition of multiple movement elements in a performance that is performed because multiple parts of a body of a user move; a calculator configured to calculate collaboration information representing move collaborativeness of the movement elements from the acquired multiple sets of sensing data; and a notification unit configured to notify the user of feedback information based on the calculated collaboration information is provided.

The present invention provides a chordophone including a body configured to have a top plate, a bottom plate, and a side plate connected to the top plate and the bottom plate, which comprises: a cut-out plate formed by cutting the bottom plate, and configured to have a grille formed on a portion penetrated of the cut-out plate; a bracket formed in a shape corresponding to the cut-out plate and configured to have a base plate coupled to an inner side of the cut-out plate; and a speaker unit configured to have a speaker installed in the bracket, a control unit for controlling an output of the speaker, and a communication module for allowing a sound source output from the speaker to be received from an external user terminal, in which the grille is formed in a size and shape corresponding to a diameter of a side on which a sound of the speaker is output, and a through-hole is formed penetrated on the base plate at a corresponding position to the grille and with a corresponding shape to a shape of the sound output side of the speaker.