Methods and systems of music notation for visually representing music that provide a visual scale representing a range of an auditory scale of a portion of a musical composition spanning at least four and a half steps. The visual scale may comprise a plurality of whole-step segments each representing one whole step in the auditory scale. Each whole-step segment may be approximately a first height. The visual scale may also comprise one or more half-step segments each representing one half step in the auditory scale. Each half-step segment may be approximately a second height. A first ratio representing the first height divided by the second height may be significantly greater than a second ratio representing the whole step divided by the half step.

Disclosed are a harmony symbol input device and method using a dedicated chord input unit. The harmony symbol input device includes: a musical notation provider configured to visualize and provide a musical notation; a chord input unit provider configured to provide a dedicated chord input unit for inputting a harmony symbol in each harmony section of the musical notation; and a harmony symbol display part configured to repeat an operation that provides highlighting for a specific harmony section in a progression order of the musical notation and displays the harmony symbol received from the dedicated chord input unit in relation to the highlighting.

Disclosed are a harmony symbol input device and method using a dedicated chord input unit. The harmony symbol input device includes: a musical notation provider configured to visualize and provide a musical notation; a chord input unit provider configured to provide a dedicated chord input unit for inputting a harmony symbol in each harmony section of the musical notation; and a harmony symbol display part configured to repeat an operation that provides highlighting for a specific harmony section in a progression order of the musical notation and displays the harmony symbol received from the dedicated chord input unit in relation to the highlighting.

An image control system includes an estimation circuit, an obtaining circuit, and an image control circuit, which circuits can be at least one processor. The estimation circuit receives an output from a trained model in response to an input of an acoustic signal indicating a performance of a musical piece. The estimation circuit estimates musical performance information based on the output. The musical performance information is associated with the performance indicated by the acoustic signal relative to the musical piece. The obtaining circuit obtains manipulation information that is associated with a playback of an image. The image control circuit controls the playback of the image based on the musical performance information. The image control circuit controls the playback of the image based on the manipulation information upon obtaining the manipulation information.

An approach is provided for converting color data into one or more musical notes. The approach involves reading, using a color-reading device, respective colors applied to a canvas by a plurality of drawing instruments as color data, wherein each of the plurality of drawing instruments is configured to draw in respective colors of a color palette, and wherein the respective colors of the color palette correspond respectively to a set of musical notes. The approach also involves processing, using a color processing module, the color data to generate a composition of the one or more musical notes from the color data based on a set of musical notes that correspond to the respective colors in the color data.

An approach is provided for converting color data into one or more musical notes. The approach involves reading, using a color-reading device, respective colors applied to a canvas by a plurality of drawing instruments as color data, wherein each of the plurality of drawing instruments is configured to draw in respective colors of a color palette, and wherein the respective colors of the color palette correspond respectively to a set of musical notes. The approach also involves processing, using a color processing module, the color data to generate a composition of the one or more musical notes from the color data based on a set of musical notes that correspond to the respective colors in the color data.

A method for generating a music file for recording user performance may include: detecting, by a sensor, an event indicating a status change of an execution device of the keyboard instrument; generating, by the sensor, a signal corresponding to the detected event; receiving, by a processor, the signal; and generating, by the processor, a music file based on the signal. In some embodiments, the execution device may include a weight lever. The weight lever may a concrete structure in the keyboard instrument to simulate a rebound force generated by hammer striking on string, by striking on an elastic structure. In some embodiments, a rebound force for a first weight lever may be different from a rebound force for a second weight lever by adjusting parameters of the elastic structure or the weight lever.

A method for generating a music file for recording user performance may include: detecting, by a sensor, an event indicating a status change of an execution device of the keyboard instrument; generating, by the sensor, a signal corresponding to the detected event; receiving, by a processor, the signal; and generating, by the processor, a music file based on the signal. In some embodiments, the execution device may include a weight lever. The weight lever may a concrete structure in the keyboard instrument to simulate a rebound force generated by hammer striking on string, by striking on an elastic structure. In some embodiments, a rebound force for a first weight lever may be different from a rebound force for a second weight lever by adjusting parameters of the elastic structure or the weight lever.

A musical system may include one or more storage media, at least one processor, one or more sensors corresponding to keys of a musical instrument, and a display. The storage media may be configured to store a set of instructions for modifying a music score for a user based on a performance level of the user. The at least one processor may be configured to communicate with the one or more storage media. When executing the set of instructions, the processor is directed to determine a user performance level of a user and provide a modified music score for the user based on the user performance level. The sensors may be configured to sense a motion of at least one key of the keys and generate a key signal accordingly. The display may be configured to display the modified music score.

A beat timing generation device including a generation unit for generating, from data of music that has been input, information of timings on which a beat of the music depends and a plurality of pieces of intensity data indicating a power at the timings; a calculation unit for calculating a period and a phase of the beat of the music using the plurality of pieces of intensity data; and a detection unit for detecting a beat generation timing on a basis of the period and the phase of the beat.