Abstract: A hi-hat cymbal controller for use with an electronic moveable hi-hat cymbal and clutch, both couplable to the pull rod of a traditional hi-hat stand, contains an internally movable electromagnetic field source and sensor responsive to electromagnetic field changes. Downward motion of the hi hat cymbal and/or clutch relative to the stationary controller causes the field source to move axially relative to the sensor which generates a signal data useful by a drum module to initiate and terminate playback of audio samples characteristic of the co-action between the top and bottom cymbals of an acoustic hi-hat system.

Abstract: A guitar pedalboard for creating a loop includes a touch screen display for displaying a plurality of tracks of a loop. The touch screen display can be used to adjust a parameter of each track, and the loop. A plurality of footswitches corresponding to the plurality of tracks can be used to independently record and play each track of the loop.

Abstract: A DJ media player is provided. The DJ media player has a control wheel used to control audio playback and a customizable first electronic display located about the center of the platter for displaying a graphic. The DJ media player has a second electronic display to show audio playback information. The graphic is dynamically updated. The graphic corresponds to at least one of a logo, an artist, an album, a song playback information, or a selection made by a user.

Abstract: A guitar pedalboard for creating a loop includes a touch screen display for displaying a plurality of tracks of a loop. The touch screen display can be used to adjust a parameter of each track, and the loop. A plurality of footswitches corresponding to the plurality of tracks can be used to independently record and play each track of the loop.

Abstract: A guitar pedalboard for creating a loop includes a touch screen display for displaying a plurality of tracks of a loop. The touch screen display can be used to adjust a parameter of each track, and the loop. A plurality of footswitches corresponding to the plurality of tracks can be used to independently record and play each track of the loop.

Abstract: A guitar multi-effects pedalboard is provided. The pedalboard has one or more footswitches, an electronic display, and a memory storing guitar-effect presets for processing an inputted guitar signal when the processing is triggered by pressing a footswitch. The presets include signal chains with two or more guitar-effect pedal simulators that simulate two or more guitar-effect pedals. The pedalboard also has one or more processors coupled to the electronic display and the memory. The processors are configured to process an inputted guitar signal when the processing is triggered by pressing a footswitch. The processors are also configured to display, on the electronic display, an image of the signal chains, which includes an image of pedals and an image of existing simulated connections between pedals. Signal routing in the signal chain may be changed by touching the image of a pedal and dragging the image to a destination position.

Abstract: A step sequencer with a four by sixteen grid of buttons is disclosed. The sequencer is used to generate patterns of sounds on different channels. The sequencer can be used as a hardware controller to control music production software. The grid of the sequencer emulates the virtual grid generated in a graphical user interface by the music production software. The grid of the hardware controller is used to control the corresponding grid on the graphical user interface.

Abstract: A DJ media player is provided. The DJ media player includes a display to show audio playback information; a platter used to control audio playback; one or more energy-storing devices; and a processor for responding to DJ media-player electrical-power loss. Responding to DJ media-player electrical-power loss includes storing electrical charge on energy-storing devices; sensing a disruption in electrical current supplied by a power source to the DJ media player; powering the DJ media player using the electrical charge on the energy-storing devices; and displaying a notification on a DJ media-player display that there was a disruption of power. Responding to electrical-power loss comprises performing a safe shutdown procedure for avoiding file and system corruption.

Abstract: A wireless DJ controller includes an accelerometer, a control button, and a wireless transceiver. The wireless DJ controller detects when the control button has been depressed and accesses an output value from the accelerometer. Based on the accessed output value, the DJ controller generates a control signal and transmits the control signal to manipulate an audio signal. Methods of manipulating audio signals using the DJ controller are also disclosed.