The present disclosure relates to a method and system for calibrating a musical device. In some embodiments, a method for calibrating a musical device includes: determining a first time corresponding to a first instruction that instructs a driving device to actuate a first component of a musical device using a first force; receiving first sensor data relating to motion information of the first component; determining a second time based on the first sensor data; determining, by a hardware processor, a first time deviation based on the first time and the second time; and calibrating the musical device based on the first time deviation.

A smart musical instrument system may include a musical instrument, a first sensor, a second sensor, a processor device, and a reminder device. The first sensor may be configured to obtain first performance data reflecting operations of the musical instrument. The may be second sensor configured to receive second performance data associated with hand posture of a user of the smart instrument system. The processor device may be in communication with the first sensor and the second sensor, and may be configured to generate feedback based on at least one of the first performance data or the second performance data. The reminder device may be configured to deliver the feedback to the user.

A support assembly according to one embodiment of the present invention is provided, the support assembly including a jack rotatably supported by a support; a repetition lever rotatably supported with respect to the support; a protrusion disposed at an intersecting portion of the jack and the repetition lever; and a protrusion receiving portion for receiving the protrusion; wherein the protrusion receiving portion defines a movable range of the protrusion and limits a rotation range of the jack.

Systems and methods for providing a piano system are provided. In some embodiments, the methods include receiving a plurality of key signals related to a first performance of a piece of music, wherein each of the plurality of key signals corresponds to motion of at least one key of a piano during the first performance; generating first performance information based on the plurality of key signals; receiving musical data related to a second performance of the piece of music; receiving musical data related to a second performance of the piece of music, generating second performance information based on the musical data; and providing content for presentation on a display device based on the first performance information and the second performance information. The methods can also include receiving at least one pedal signal corresponding to motion of a pedal of the piano during the first performance, and generating first performance information based on the pedal signal.

The inventions relate to the field of electric musical instruments, more particularly, to an optical sensor for a stringed musical instrument with a digital interface and to a stringed musical instrument with a digital interface equipped with said sensor (MIDIMusical Instrument Digital Interface). Implementation of the disclosed inventions allows to obtain a signal corresponding to vibrations (deflections) of a string in two mutually perpendicular planes, with the influence of the device generating such signals on string vibration parameters being reduced, without signals generated by different strings being mixed and with dimensions of the optical sensor being reduced to allow for its compact placement on a stringed musical instrument.

A piano system with key assisted user input may include one or more execution devices, one or more sensors, at least one signal processing circuit, a processor and a display. The one or more sensors may be configured to detect a signal indicating a status change of at least one of the one or more execution devices. The at least one signal processing circuit may be configured to generate a control signal for controlling an input of a computer device in response to the signal detected by the one or more sensors. The processor may be configured to process the control signal to determine content to be displayed on a user interface. The display may be configured to display the determined content on the user interface.

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 button is disclosed, which includes a button unit suspended movably vertically in Z-direction in a fixed frame and having a button body with an upper actuating surface and at least one central shaft extending vertically downwardly from the button body and extending at an upper end below the button body horizontally into an extension. The shaft and the extension having a translucent material such that they commonly form a light guide which is fixedly connected to the button body. The button additionally includes a light source vertically below the shaft. Light from the light source leaves vertically upwardly and enters the shaft from below. The button further includes a first optical device arranged in the vertical upper area of the light guide above the shaft for deflecting light that has entered the shaft from the light source in a horizontal direction into a plane of the extension.

A button is disclosed, which includes a button unit suspended movably vertically in Z-direction in a fixed frame and having a button body with an upper actuating surface and at least one central shaft extending vertically downwardly from the button body and extending at an upper end below the button body horizontally into an extension. The shaft and the extension having a translucent material such that they commonly form a light guide which is fixedly connected to the button body. The button additionally includes a light source vertically below the shaft. Light from the light source leaves vertically upwardly and enters the shaft from below. The button further includes a first optical device arranged in the vertical upper area of the light guide above the shaft for deflecting light that has entered the shaft from the light source in a horizontal direction into a plane of the extension.

A smart musical instrument system for replaying user performance with auto-play, electronic sound source or video, the system may include a musical instrument, a plurality of sensors, and a processing device. The plurality of sensors may be configured to obtain performance data of a user. The plurality of sensors may include a first sensor configured to obtain first performance data of the user. The performance data may include the first performance data indicating operations of a musical instrument. The processing device may be in communication with the plurality of sensors. The processing device may be configured to compare the performance data with reference music data to generate a comparison result and generate feedback based on the comparison result.