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Ciat-Lonbarde Tetrax Organ

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The Tetrax Organ follows a lineage of electronic musical instruments based on touch. It was redesigned once, as Tetrazzi. It has four wooden bars that you press to express four oscillators within. Each oscillator has its own fine tuning slider, embedded right within its bar.

Also, there is are two master pitch knobs, and two master chaos knobs. Each master chaos knob makes the instrument go from pure sawtooth tones to a nest of noise. It does this by gradually increasing modulation from one oscillator to the next in a circular pattern.

The reason there are two of each knobs: the Tetrax is all about timbre modulation, by changing the upslope and downslope of triangle waves separately. So, for master pitch and chaos, there is a separate upwards and downwards knob. In general, Tetrax is for funky bass and complex tones, while Sidrax is for sweet melodies. Of course they all have noise available at any point!

There are 28 modulation points brought forth as banana jacks. They are arranged in four columns, representing the four bars. Their layout is shifted diagonally, to allow inputs in proximity to outputs. This is for touch-playability; you can make banana jack metal studs that can be squished by hand to gesture-patch the instrument. Inputs are cool colors: blue, green, and grey. Outputs are hot colors: red and orange. The color jacks allotment for each bar is as follows:

BLUE - FM modulation input for that oscillator.

GREEN - "glitch" inputs. They cause the boundary conditions of each oscillator to wire to the output of another.

GREY - parallel inputs with the master knobs: the two on the left are for master pitch, the right two are master chaos.

ORANGE - representing the press and release gestures on that bar in voltage.

RED - pure triangle output of that oscillator.

The Tetrax organ has a stereo-mini output on the back. This is because each bar, outputs in different channels during the press/release cycle. In addition to the stereo-mini jack, it has an power switch, and optional built-in batteries, or an external, 9 volt battery snap.

Technical Specifications
Type: Digital
Synthesis: Frequency Modulation, Oscillator(s)
Oscillators: 4
Waveforms: Saw Up, White Noise
Osc Modulation: After Touch, Fader, Keyboard, Oscillator, Velocity
Envelopes: 0
Filters: 0
LFO: 0
Polyphony & Tuning
Polyphony: 4
Timbrality: 4
Tuning: Atonal, Micro
Modes: Polyphonic
Patches RAM: 1
Case: Keyboard
Case Details: 4 keys
Keyboard: Touch Plates, Wood
Controls: Pads, Knobs, Sliders
Audio Output Connections: 1/8" Phone Jack, Stereo Main
Audio Output Count: 2
Power: 12V DC
Year Released: 2013
Used By
Peter Blasser, Alessandro Cortini, Jack Hertz

Product Links
Company Product Sites:
[+] ciat-lonbarde.net
MSRP List Price: $500.33 - convert
Used Price: $350 - $400 - convert

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