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The MOOG Theremini is designed for practice, studio recording, and live performance. The instrument is played without physical contact by using hand gestures to change volume and pitch by controlling the distance to the device's antennas.
To assist in learning to play the instrument, the Theremini features a built-in tuner that allows you to see what note you are playing and whether the note is sharp, flat, or in tune. A 0 to 100% assistive pitch correction knob allows you to adjust the playing difficulty level of the device by automatically keeping the sound in pitch to a user-defined scale or root note. At 100%, the assistive pitch correction will make it impossible to play a wrong note. At 0%, no pitch correction will be applied. The tuner and assistive pitch correction functions can be used in conjunction to educate the performer on the range of the instrument and develop proper playing technique.
Additional controls include a preset knob that provides 32 wavetable-based sounds, root and scale buttons for selecting a scale and root note, controls for setting and recalling a playing range, and a variable stereo ping-pong delay for individual presets.
For listening, the unit includes a front-panel 1/8" stereo headphone jack with a volume control, as well as a built-in speaker that is muted when the headphone jack is engaged. Two 1/4" audio outputs enable connection to an audio interface, mixer, or other equipment for studio recording or live performance. A single-pitch CV output with selectable range enables external connection to a sequencer or synthesizer using a control voltage signal, and a mini-USB port allows the device to communicate with other devices over MIDI.
The unit's pitch antenna can be removed and placed in a built-in storage compartment on the bottom of the device. Integrated rubberized feet prevent the unit from slipping on the playing surface, and a built-in 3/8" microphone stand connector allows you to put the instrument on a stand. Alternatively, you can use the included camera stand adaptor for placing the unit on a tripod. An amplifier, case, and stand are available and sold separately.
Controls headphone output volume or built-in speaker volume depending on whether headphones are connected
Pitch Bias Knob
Determines the amount of pitch correction applied—from 0% to 100%
Selects from a list of pre-programmed scales
Selects the root note to be used in a scale
Provides access to the setup menu so that the device's functions can be calibrated, also doubles as a shift key
Delay Length Button
Selects the length of the delay from short, medium, long, and off
Delay Amount Knob
Controls the amount of delay mixed with the unprocessed signal
Selects the preset to be played from the built-in collection of 32 Wavetable presets