An AR-based supplementary teaching system for guzheng and method thereof, the system includes an AR device, a data processing device and positioning devices for key positions, the data processing device is signal-connected to the AR device, and the positioning devices is installed on the guzheng code of guzheng, the positioning devices corresponds to the guzheng code of guzheng one by one; the AR device is used to obtain real scene data; the data processing device is used to guzheng and the positioning devices identify and generate string distribution data; also used to obtain operation instruction based on user actions, execute the operation instruction and generate virtual data; the AR device is also used to convert all data based on the string distribution data The virtual data and the real scene data are superimposed and displayed.

There is provided a measurement device which is operable to measure a movable range of a finger easily in a further small size and a measurement method, and a program. The measurement device includes: a first linear motion mechanism which has a contacting part contacting a back of a hand and linearly moves along a longitudinal direction, the back of the hand serving as reference of measurement; a second linear motion mechanism which moves together with a finger targeted for the measurement and linearly moves along a longitudinal direction; and a rotation mechanism which rotatably connects one end of the first linear motion mechanism and one end of the second linear motion mechanism and has a sensor detecting a rotation amount of the second linear motion mechanism, the second linear motion mechanism rotating with respect to the first linear motion mechanism. Then, current values of the rotation amount detected by the sensor are obtained, and a measured value of a joint angle is calculated from a threshold value updated by a maximum value of the current values, the measured value showing a movable range of the finger. The present technology is applicable to, for example, a measurement device which measures a movable range of a finger.

An information processing apparatus (100) according to the present application includes two or more force sensors (110) that each detect a force of two or more different fingers of a user, and a processing unit (122) that executes information processing related to measurement of forces of the two or more different fingers based on detection results detected by each of the two or more force sensors (110).

A device for detecting the grip pattern when playing a bowed instrument, having a sensor film arrangeable on the fingerboard for detecting the grip pattern. The sensor film is formed from at least one resistance layer, a conductive layer and a spacer layer arranged in-between, and having an evaluation circuit, by which evaluation circuit the resistance changes of the sensor film caused by the grip pattern are able to be detected. The resistance layer is divided into a number of resistance tracks corresponding to the number of strings of the bowed instrument. The width of each resistance track is formed increasing from one end of the sensor film to the other end of the sensor film, and the upper layer of the sensor film is formed by the conductive layer, and the sensor film has a curvature, corresponding to the arch of the fingerboard.

A training apparatus is capable of generating and presenting a suitable training menu for finger exercise to maintain or improve a cognitive function and/or an exercise function of a human and supporting training of the human. The training apparatus includes a measuring apparatus and a terminal device. Analysis evaluating data based on measurement of the finger exercise including finger tapping is obtained, and the analysis evaluating data contains an evaluation value of an index item related to an exercise function of a user. A training menu for the user is generated based on the analysis evaluating data and contains a training item for the finger exercise. The index item includes at least one of an amount of exercise, endurance, rhythmicity, cooperativeness of both sides, or marker trackability. The training item includes an exercise to carry out the finger tapping in accordance with teaching information, stimulation, or a marker.

A simulated musical string instrument formed of plural shaped sheets of rigid material, such as cardboard. There is a top sheet forming a top surface of the simulated string instrument body, and a bottom sheet forming a bottom surface, and multiple sheets between. A simulated fingerboard is attached to the top surface. The top sheet and fingerboard gets stickers that show parts of the simulated string instrument body including openings and notes. There is also a simulated bow guide and a simulated bow.

A sensing fretboard for stringed instruments is described herein with respect to a guitar. The present invention includes custom frets and a modular sensing array that can be incorporated into a fretboard and coupled to the guitar. By measuring the dynamic forces applied by the players on the frets and strings of the guitar, musicians can be warned in real time during practice, when their grip is too strong, and to help musicians learn and recover from injuries.

Enhanced stringed instrument learning is provided by a wearable device. A control unit comprising a processor and a memory device is integrated with a frame, of the wearable device, formed to fit over a hand of a user while playing a stringed instrument. A finger assembly is provided each finger of the hand and is coupled to the frame to immobilize a finger of the hand while playing the stringed instrument. A sensor array is coupled to each finger assembly and to the control unit to determine at least a positioning of fingers on the stringed instrument. The sensor also sends user performance data to the control unit. The control unit analyzes the user performance data and outputs feedback to the user based on the performance data analysis.

Enhanced stringed instrument learning is provided by a wearable device. A control unit comprising a processor and a memory device is integrated with a frame, of the wearable device, formed to fit over a hand of a user while playing a stringed instrument. A finger assembly is provided each finger of the hand and is coupled to the frame to immobilize a finger of the hand while playing the stringed instrument. A sensor array is coupled to each finger assembly and to the control unit to determine at least a positioning of fingers on the stringed instrument. The sensor also sends user performance data to the control unit. The control unit analyzes the user performance data and outputs feedback to the user based on the performance data analysis.

The present invention relates to a musical instrument for producing a harmonious scale of musical notes. The instrument includes nine separate sound actuators each of which is configured to cause the musical instrument to generate a different frequency selected from the group of frequencies comprising 174 Hz, 285 Hz, 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, 852 Hz and 963 Hz, the musical instrument being configured such that physically manipulating the sound actuators causes the musical instrument to generate the frequency corresponding to the sound actuator manipulated. The invention is also directed at a system for—writing music to be played with a musical instrument incorporating the harmonious scale of musical notes as described above. The notation system includes a staff of five parallel and horizontal lines separated by four spaces, the first line indicating a first note of 174 Hz, the space immediately above the first line indicating a second note of 285 Hz, the second line indicating a third note of 396 Hz, the space immediately above the second line indicating a fourth note of 417 Hz, the third line indicating a fifth note of 528 Hz, the space immediately above the third line indicating a sixth note of 639 Hz, the fourth line indicating a seventh note of 741 Hz, the space immediately above the fourth line indicating an eighth of 852 Hz and the fifth line, indicating a ninth note of 963 Hz.