Suggester Create brilliant chord progressions Mac App Store
Download on the Mac App Store

Also available for Android, iOS and Windows.

Suggester 2 is available now for iOS and macOS. Check it out!

Suggester is a tool for writing songs and chord progressions. This app will help you find chords that work together. It is efficient and fun; use it to build musical phrases that will carry emotion through tension and release.

Select chords for their harmonic function. The app makes full use of the roman numeral notation.

Simply click a chord to hear how it sounds. Press the play button to hear the chord progression sequentially and adjust the playback speed.

You can work either forward or backward:

  • FORWARD - Pick a scale, then build your song from the chords that the app suggests. That’s the quickest way to assemble chords that are compatible.
  • BACKWARD - From the catalog, pick a set of chords that you like. The app will tell you what scales it matches with. After you have selected the scale you want to use, the app can tell you what chords will fit in with the ones you entered before. That is extremely useful in jam sessions!

Pick chords and scales from our huge catalog. To go even further, you can create your own custom scales and custom chords.

To spice things up, you can borrow chords from parallel scales.

Explore new territories by using modulation.

Browse the classic chord progressions to find inspiration.

Use Drag and Drop to reorder chords.

Press the note button on the left to change the duration of a chord.

Export your songs as audio, MIDI or text.

Every sound generated with the app is also sent to the MIDI output, configurable in the Preferences. You can route these notes to another app, an external MIDI port, or a MIDI Network Session.

You can trigger chords through the MIDI input.

Sync your tempo with other apps with the help of Ableton Link.

Drag a chord directly into any app that supports MIDI drag and drop, such as Ableton Live or Logic Pro X.

It includes all the features you like from the iOS version, plus a bunch of improvements: Multiple documents at the same time, drag and drop between apps, right-click menus… and more! The iOS version is sold separately.


  • Piano
  • Electric Piano
  • Vintage Electric Piano
  • Organ
  • Strings
  • Guitar

Chromatic Harmony Devices:

  • Secondary dominant chords
  • Secondary leading-tone chords
  • Tritone substitution
  • Neapolitan chord
  • Augmented sixth chords (Italian, French, German)
  • Borrowed chords
  • Modulation

Scale Types :

  • Major (Ionian)
  • Natural Minor (Aeolian)
  • Dorian
  • Phrygian
  • Lydian
  • Mixolydian
  • Locrian
  • Harmonic Minor
  • Harmonic Major
  • Jazz Minor
  • Hungarian Minor
  • Phrygian Dominant
  • Major Blues
  • Minor Blues
  • Prometheus
  • Augmented
  • Diminished
  • Whole Tone
  • Neapolitan Major
  • Neapolitan Minor
  • Persian
  • Double Harmonic Major
  • Altered Dominant
  • Pentatonic Major
  • Pentatonic Minor

Chord Types :

  • major triad (maj)
  • minor triad (m)
  • power chord (5)
  • dominant 7th (7)
  • minor 7th (m7)
  • major 7th (M7)
  • minor major seventh (mMaj7)
  • half-diminished seventh (m7b5)
  • major seventh flat fifth (Maj7b5)
  • minor major seventh flat fifth (minMaj7b5)
  • dominant seventh flat fifth (7b5)
  • dominant seventh sharp ninth (7#9)
  • dominant seventh flat ninth (7b9)
  • diminished seventh (dim7)
  • augmented major seventh (augMaj7)
  • dominant 7th suspended 2nd (7sus2)
  • dominant 7th suspended 4th (7sus4)
  • major 7th suspended 2nd (Maj7sus2)
  • major 7th suspended 4th (Maj7sus4)
  • 9th (9)
  • minor 9th (m9)
  • major 9th (Maj9)
  • minor major 9th (mMaj9)
  • 6/9 (6/9)
  • minor 6/9 (6/9)
  • diminished (dim)
  • augmented (aug)
  • added 2nd (add2)
  • minor added 2nd (madd2)
  • added 4th (add4)
  • minor added 4th (madd4)
  • added 6th (add6)
  • minor added 6th (madd6)
  • added 9th (add9)
  • minor added 9th (madd9)
  • suspended 2nd (sus2)
  • suspended 4th (sus4)
  • dominant eleventh (11)
  • sharp dominant eleventh (#11)
  • flat dominant eleventh (b11)
  • minor eleventh (m11)
  • major eleventh (Maj11)
  • dominant thirteenth (13)
  • minor thirteenth (m13)
  • major thirteenth (Maj13)
  • Italian augmented sixth (It+6)
  • French augmented sixth (Fr+6)
  • German augmented sixth (Gr+6)
  • and more!

Additional features:

  • Compatible with Ableton Link.
  • Full support for undo/redo.
  • Optimized for Retina Display.
  • Supports the Dark Mode.
  • Support for drag and drop between apps.
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