A stringed instrument tuner that senses the vibration of all the strings of the instrument independently and simultaneously via ultraviolet reflective light sensors that are immune to interference from ambient alternating-current lighting. The pitches of the strings are then measured continuously in real-time and transmitted wirelessly to a receiver that simultaneously graphically displays how far out-of-tune all of the strings are so that the musician can instantly see which strings need tuning and tune them quickly. The receiver may be a smartphone, smartwatch, smart glasses, computer, self-tuning system, or a dedicated wearable receiver-display unit.

A method for frequency tuning a set of plates of a watch. The plates are disposed one above the other forming a watch dial with a space defined between the plates. A mechanical shock to the set of plates is generated, and the vibration frequency of each plate is checked. The vibration frequency of at least one of the plates is matched if different from the other plate so as to obtain an identical vibration frequency for each plate in order to tune the plates at least according to the first vibration eigenmode so as to avoid any contact between the plates as a result of any mechanical shock.

A method for frequency tuning a set of plates of a watch. The plates are disposed one above the other forming a watch dial with a space defined between the plates. A mechanical shock to the set of plates is generated, and the vibration frequency of each plate is checked. The vibration frequency of at least one of the plates is matched if different from the other plate so as to obtain an identical vibration frequency for each plate in order to tune the plates at least according to the first vibration eigenmode so as to avoid any contact between the plates as a result of any mechanical shock.

An acoustic musical instrument a hollow body, neck, speaker, and digital audio device. A control circuit is coupled to the speaker and the digital audio device. The speaker is externally positioned on the hollow body. The digital audio player is externally positioned on the hollow body. The control circuit is communicatively coupled to a MIDI component, an electronic tuner, amplifier board, and an effects board. A plurality of light emitting diodes are positioned on the neck and coupled to the control circuit. The control circuit is configured to synchronicitously energize the LEDs with an audio file that is executed by the digital audio device. The control circuit is configured to synchronicitously energize the LEDs according to instructions received external to the acoustic musical instrument. The speaker is communicatively coupled to the amplifier board. The digital audio device captures sounds that are generated by the acoustic musical instrument.

The present invention relates to a calculation formula of Pythagorean tuning. It specifically comprises: inputting the initial frequency of the musical tuning, the number of downward tone and the number of upward tone through an input module, then calculating a corresponding frequency value by utilizing a calculation module, and outputting the corresponding frequency value through an output module. Compared with the traditional calculation method, the present invention has the advantages that: the present invention inputs the initial frequency of the musical tuning, the number of downward tone and the number of upward tone utilizing an input module, and calculates the corresponding frequency value by utilizing a calculation module, and outputs the corresponding frequency value through an output module, especially the obtained tone sequence can be played by various musical instruments through the sound output unit in the output module, which is convenient for music practitioners to use.

An information processing device includes: an input interface; and at least one processor, configured to perform the following: selecting an instrument, a musical tone of which is to be digitally synthesized based on corresponding musical tone data, via the input interface; acquiring a parameter value that has been set for the selected instrument; generating a random number based on a random function; and changing a pitch of the musical tone of the selected instrument based on the generated random number and the acquired parameter values.

An electric piano is provided with a movable pickup rail to globally alter the harmonic and fundamental characteristics of the piano tone by manipulating the vertical position of the pickup rail relative to an array of tone producing elements. The apparatus permits global tone adjustment that can be locked in place or adjusted on the fly in a performance setting for example.

The invention provides a method, system and tuning devices for reed and flue pipes for automatically tuning or checking the tuning of a pipe organ. The invention enables the tuning of the reed pipes to the same pitch as flue pipes if the fluctuation of temperature and humidity has caused a change in the pitch of the flue pipes, and to restore the tuning of the reed pipes in case of random loss of tuning. The invention allows to reduce the tuning time and to tune the pipes that require more frequent tuning (i.e. the reed pipes) unobtrusively to the organist and listeners during the playing of the organ. It is possible to employ the method of the invention on all pipes of an organ or only on a selection of them.

Apparatus and methods for securing a string to an acoustic, stringed instrument are disclosed. Example apparatus include string anchors secured to a bridge of the stringed instrument. The apparatus provide components enabling selective tensioning of the string. A seat arrangement provided by string anchors receives an anchor end of string and the string passes from the seat arrangement through a base arrangement and towards a headstock of the acoustic instrument.

A stringed musical instrument is disclosed herein. The stringed instrument comprises a body, a head, a neck, and one or more strings. The neck has a back plate and a cover integrated with the back plate. The back plate comprises a first array of openings and the cover comprises a second array of openings. The first array and second array of openings align to form an array of light housings. Each light housing is configured to house a light (e.g., LEDs). Also disclosed herein is an interactive stringed musical instrument teaching system comprising a stringed instrument and a mobile terminal (e.g., computer). Both the smart stringed instrument and the mobile terminal are in communication via one or more communication modules. The mobile terminal comprises a microphone, a tuning module, a database, a teaching module and a game module. The stringed instrument comprises a main control module, a sound wake-up module, an LED driver module and an LED matrix module.