Key Control - Desktop MIDI Note Quantizer New Lower Price and Updated OS

Key Control is a nifty hardware device that maps your synth, sequencer or controller to a chosen key and scale making it easy for you to play in the right key... and it just got even better.  

Artificial Noise is excited to announce a new lower price to the Key Control, now only $179 plus shipping! Along with the new lower price we now offer a more flexible Operating System, one that is geared more for MIDI quantizing duties.

The Key Control is a MIDI desktop device that maps your keyboard controller, synthesizer or sequencer to a chosen Key and Scale. All MIDI note data will automatically be moved into the desired Key & Scale. Choose between 11 scales and all 12 keys.


The original OS in the Key Control used the white keys on a keyboard for single notes in a key/scale, and the black keys to play chords. But after using the Key Control for a while I noticed that I wasn't using the chord function at all, since playing chords manually was easier (see the picture on the right on how easy it is to make
chords). More than that, I ended up wishing that I could use the Key Control as a general MIDI quantizer, something that I could use with sequencers and arpeggiators.

Key Control note quantizer control panel.

The problem with the original OS was that if I was using a sequencer and I transposed it - some notes would be transposed up (natural notes), for others a chord would be sent out. As an example, if I had a C in my sequence and I transposed it up a semitone, the output note would not be C# but a chord!

So, I changed the OS for myself to only output note data and loved it! Now, instead of chords on the black keys (sharp/flat notes) it will output the notes nearest to the left. And now that I'm bringing the Key Control back into production, I've decided to make the new OS standard as it makes it much more useful in a MIDI environment.

The Key Control is easy to operate, simply hook up the Key Control between your keyboard controller (or other MIDI output equipped gear) and your desired MIDI destination ( ie. computer, synthesizer, sequencer, etc) via standard 5-Pin MIDI DIN cables. Or put your synthesizer in "Local OFF" mode and send the MIDI out from your synth through the Key Control and back into the synth, to always play 'in

With a fast and easy 2 knob interface, you can quickly dial in one of a possible 132 possible key and scale combinations and get down to making music fast and with no fuss.

Key Control

In “Chromatic” mode, all 127 MIDI notes are passed through unchanged, while the “Key” knob will transpose the incoming MIDI notes up to 11 semi-tones.

MIDI notes are changed depending on the Key & Scale chosen, but all other MIDI data passes through unchanged, with low latency and fast operation.

Key Control is safely inside a compact but tough aluminum case.

Scales include:

  • Major
  • Minor
  • Harmonic Minor
  • Melodic Minor
  • Dorian
  • Locrian
  • Lydian
  • Blues
  • Major Pentatonic
  • Minor Pentatonic
  • Augmented
  • Chromatic / Thru Mode

PRICE $179 USD + Shipping, includes 9v power supply (region specific)

For information or ordering please visit:



Rounik is the Executive Editor for Ask.Audio & macProVideo. He's built a crack team of professional musicians and writers to create one of the most visited online resources for news, review, tutorials and interviews for modern musician and producer. As an Apple Certified Trainer for Logic Pro Rounik has taught teachers, professional... Read More


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