Scaler 3 Key Features

100s of Chord Sets and Scales categorised by mood, artist and genre. Scaler 3 greatly expands the number of chord sets and makes them easier to work with.

Build Chord Progressions using the sequencer and get suggestions based on your currently selected chords.

Play your favourite instruments with VST/AU Plugin Hosting, including effects too.

With powerful Detection of MIDI and audio, Scaler can determine what key and scale you’re in and suggest chords that match your music.

Standalone mode for working on your desktop computer without needing a DAW.

Huge library of Motions lets you play chords as melodies, arpeggios, basslines and strums, and to modify them using the piano roll editor and global Note Properties..

Check the Circle of Fifths to find nearby chord substitutions and their extensions.

Solve your modulation puzzles in five ways: Progression, Secondary Scale, Modal Interchange, Mediants, Neo-Riemannian.

Experiment with Voice Grouping to keep your chords within a certain range or apply drop voicings, guitar voicing and more.

50 Internal Sounds to play your inputs, chords and progressions, or load VST/AU instrument plugins.

Use Bind to Keyboard to control chord playback with notes, for one-finger chords, arpeggios and more.

Discover new chord expressions – chord substitutions, inversions, variations, voicings and extensions – in the Colors page.

Line up seven progressions with different motions to compare in the Sketch Pad page.

v3.2.2 (9 April 9 2026)

New Features

- Added Snap Division setting to the three-dot menu on the Main Track (Browse page)

- Mute and Solo now apply to MIDI as well as audio

- Updated scrollbars with larger grab handles, aligned with the iPad design

Fixes

- Fixed an issue preventing Scaler 3 from opening on some Windows systems following a Windows MIDI Server update

- Resolved stuck notes when performing glissando on the keyboard

- Fixed non-sequential numbering across certain Motions (including Other Time Signatures and filtered Common Bass)

- Corrected duplicate Noir chord set entries in Atmospheric mood

- Fixed Arrange page scrollbar hiding when resizing the track area

- Fixed issue where selected scale was not retained when loading presets

Improvements

- Updated onboard tutorial

- Updated user manual

- General stability improvements

home page: https://scalermusic.com/products/scaler-3/