EyePlayChords is free music software for the Windows PC.

Purpose: This program allows any child in the class to participate in music lessons.
EyePlayChords is a musical instrument for people with severe disabilities who can control their computer screen with Eye-gaze, Head-gaze or a Mouse. It is a tool for playing and creating chords. A chord, simply put, is any combination of three or more notes.

Setting up EyePlayChords is very simple:

Step 1 – Download and install our free software EyePlayChords

Step 2 – Open “C Chords.midikeys.xml” from the FILE drop down menu

Step 3 – Start experimenting with your mouse cursor

The whole class plays together.

Our software aims to ensure that everyone can actively participate during a music lesson. We would like to introduce you to a teaching method that can help you to reach this goal: Figurenotes. Start a whole classroom using Figurenotes and let them progress through reading music at their own pace, while letting the whole class play together. https://figurenotes.org/chords/

Main screen EyePlayChords

Chordpad-only view

EyePlayChords offers endless possibilities!

There are three ways to play the chords.

  • With a Mouse
  • With an Eye Tracker (Tobii etc)
  • With a Head Tracker (Headmouse etc)

You trigger the notes in different ways.

  • Hover the mouse pointer over the chord pads
  • Click on the chord pads
  • Use a breath controller to trigger the chord pads

Acces a wide range of instrument sounds.

  • You can use the internal Microsoft wavetable synth that comes included with windows
  • With a virtual MIDI cable, you can connect EyePlayChords to MIDI-compatible music software running on the same computer (Reason, Kontakt, Ableton live, Respiro, Camelot)
  • With a USB MIDI interface, you can trigger external music devices such as synthesizers, sound modules, samplers and keyboards

You can select* different MODES

  • Mouse over trigger
  • Sustain
  • Endless duration*If you don’t select anything, the Chord pad will be triggered with a left mouse click.
    The duration setting influence the length of a note.

Tobias Kozlowski demos his software.

You can also change some setting for the on screen keyboard.
Select Extra from the menu bar to change key sizes


The Chord pads have different velocity values. The notes are loud at the top and become progressively softer towards the bottom of the Chord pad. You can also trigger the pads using a Breath Controller, and articulate them using your breath! (You will need to turn off the breath controller fixed velocity setting)

More Options

You can change the note duration, the velocity curve, and many other musical settings

  • use the piano setting to change note duration of the Piano keys
  • change the velocity curve

By default your chords will be stored in a documents folder.
The program has many other features, which you can explore yourself!

Note: We are aware that the editing and selecting in this program is too difficult for some users, so they may need an extra hand to set up for a performance. In the future we would like to add extra accessibility features for disabled players, so they can control the program more easily by themselves.

This software is conceived and developed by for My Breath My Music by Tobias Kozlowski.

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