An electronic musical instrument includes an input device that receives an input operation, a display, and a processor. The processor performs a first process upon duration of a detected continuation of the input operation being a reference time or longer. The processor performs a second process upon duration of a detected continuation of the input operation being less than the reference time. The processor causes the display to display a content from which it is determinable whether or not duration of a detected continuation of the input operation being the reference time or longer.

Provided is a transmitter for musical instrument and a mode switching method thereof. A transmitter for musical instrument which is mounted on an electric guitar determines the electric guitar is in a not-in-use state when a continuation time in which a square sum of accelerations output from a three-axis acceleration sensor is smaller than a power-saving threshold value is longer than a power-saving transition time, and the transmitter transitions from a normal mode to an energy-saving mode. On the other hand, when the accelerations in the energy-saving mode becomes equal to or greater than a release threshold value from a state of being smaller than the release threshold value or becomes equal to or smaller than the release threshold value from a state of being greater than the release threshold value, the electric guitar is returned from the energy-saving mode to the normal mode.

A portable piano keyboard is configured to be separable into multiple keyboard sections.

A pedal board assembly includes a pedal board having a pedal board surface structured and arranged to support at least one effect pedal, and a removable pedal switching system. The pedal board includes a receiving area structured and arranged to accommodate the pedal switching system.

An electronic musical instrument includes a condition determiner that determines whether an OFF condition for turning off a power supply is satisfied in an automatic power-OFF mode; a noise gate that is opened when a level of an input audio signal exceeds a threshold value and is closed when the level of the input audio signal continues being equal to or lower than the threshold value for a first predetermined period of time; and a controller that turns off the power supply on the condition that the condition determiner determines that the OFF condition is satisfied in the automatic power-OFF mode; and the controller does not turn off the power supply when the noise gate is in an open state, even in the case where the OFF condition is satisfied.

Battery powered devices are provided with electrically isolated outputs. One exemplary battery device comprises at least one battery; and control electronics configured to provide a plurality of outputs from one of the at least one battery, wherein the plurality of outputs comprise at least one output that is electrically isolated from at least one other output of the plurality of outputs that each provide power to one or more of a plurality of loads. In another exemplary battery device, the control electronics are configured to provide a plurality of outputs from one of the at least one battery, and further comprises a housing assembly comprising (i) at least two surfaces, wherein the at least two surfaces have a space therebetween configured to house the control electronics and the at least one battery; or (ii) a tubular structure configured to house the control electronics and the at least one battery.

A power plate pedal board for musical instrument electronics is provided. An exemplary battery powered pedal board structure comprises: at least one battery; and control electronics, wherein the at least one battery and control electronics are housed within the battery powered pedal board structure, wherein the battery powered pedal board structure is configured to mount a plurality of musical effects pedals and to support a load applied to the plate assembly by one or more musician, and wherein the control electronics are configured to provide a plurality of outputs from one of the at least one battery, wherein the plurality of outputs comprise one or more of: (i) one or more outputs that are electrically isolated from each other and provide power to the plurality of musical effects pedals, and (ii) one or more outputs that are not electrically isolated from each other and provide power to one or more of the plurality of musical effects pedals.

A circuit includes a signal processor configured to perform a signal processing, an amplifier configured to amplify a signal output from the signal processor, a first power supply path connected from a battery to the signal processor, a second power supply path connected from the battery to the amplifier, a capacitor connected to the second power supply path and that assists power supplied to the amplifier, and a power limiter connected to the second power supply path and that limits input power supplied from the battery.

The present invention provides an Effector Power Adapter for connecting an effector, the Effector Power Adapter includes a power supply module, at least one first voltage transformation module and multiple voltage output ports, wherein the voltage output port has at least one first voltage transformation output port. The first voltage transformation module is electrically connected to the power supply module and the first voltage transformation output port, and the first voltage transformation module controls the first voltage transformation output port to output numerically continuously adjustable voltages. The present invention further provides an Effector Working System, which has an effector and the above effector power adapter. The Effector Power Adapter and the Effector Working System provided by the present invention can apply different voltages to an effector to produce different sound effects, which enriches the playing effect and offers more musical creation space for music practitioners.

Provided is a transmitter for musical instrument and a mode switching method thereof. A transmitter for musical instrument which is mounted on an electric guitar determines the electric guitar is in a not-in-use state when a continuation time in which a square sum of accelerations output from a three-axis acceleration sensor is smaller than a power-saving threshold value is longer than a power-saving transition time, and the transmitter transitions from a normal mode to an energy-saving mode. On the other hand, when the accelerations in the energy-saving mode becomes equal to or greater than a release threshold value from a state of being smaller than the release threshold value or becomes equal to or smaller than the release threshold value from a state of being greater than the release threshold value, the electric guitar is returned from the energy-saving mode to the normal mode.