Four Voice Polyphonic Controller

It stores, traverses and manipulates chord progressions. Although it was designed as a tool for making polyphony more accessible in eurorack, it can be used for many other purposes. Think of it as a four channel sequencer and use it to inject precision voltages wherever you need them.

KLANG is inherently musical, it speaks tonal cents and defaults to the twelve note chromatic scale. If you wish you can go between semitones and play with microtonality or dial in those specific sweetspots on your favorite filter. All of KLANGs functionality is available without any form of menu diving. Everything is front and center and every function has dedicated inputs or controls.

Each of the four voices of KLANG is color coded. The current state of a voice is given by its dial position on the display. You set the dial position by turning the same color knob, and if you press the knob whilst turing you can fine tune the position and go between semitones.

KLANG stores changes on every user interaction – Always ensuring you are right where you left off when you power on your system. This is done by utilizing a special memory technology enabling billions of write cycles and a lifespan of hundreds of years.

The number on each dial indicates the octave of the voice. Keep turning the voice knob and you will see the octave indicator go up and down when you pass C on the display.

The big knob in the center is for browsing. On the display you can see the current chord index and the total chords in the sequence. Turn the browse knob to set the active chord.

A short click on the knob toggles pause. When KLANG is paused it ignores step and reset triggers, letting you edit and browse in peace. This functionality is just a convenience – pulling out the trigger and reset cables would do the same.

If you press and hold the browse knob KLANG enters tuning mode. This temporarily sets all voices to middle C so you can tune your oscillators.

The + button adds a duplicate of the active chord and sets the new chord as the active chord.

The – button removes the active chord.

At the bottom we find the outputs for the four voices. The output CV signal ranges from -5 to +5 V.