Introducing Scaler 3, the new and most advanced evolution of the world’s favourite music theory plugin. Redesigned from the ground up with an optimised workflow and powerful new features, Scaler 3 is a must-have harmonic exploration tool for producers at every level and will revolutionise how users craft chord progressions, melodies, and harmonies.


Thanks to the new multi-lane timeline, users can effortlessly write complementary lead, bass, and rhythmic parts which will respond to changes in the chord progression. Now for the first time, Scaler users can load third-party instrument and effect plugins (VST/AU) and build out arrangements right inside Scaler 3, making MIDI routing optional. You don’t even need to use a DAW with Scaler 3, which runs as a standalone app or plugin, making it an indispensable, all-in-one tool for songwriters and producers.

Scaler 3's New Features

VST/AU Plugin Hosting
With plugin hosting, Scaler 3 has rewritten the rulebook. Load your go-to instruments and effects from third-party developers, create patches and tweak effects, all from within Scaler. MIDI routing is now an optional workflow choice, not a required step. It’s a boundary-pushing creative environment that seamlessly blends harmonic songwriting, with creative sound design.

Multitrack
Write and arrange multitrack compositions from the new Multi-Lane timeline, just like a DAW. Layer basslines, arpeggios, rhythmic parts and more using phrases from Scaler 3’s expansive Motion browser, then fine-tune them with the feature-rich MIDI editor. Every element in your timeline stays locked to your main chord progression, so your layers work perfectly every time.

Explore Page
The brand-new Explore page offers an entirely new way to write inspiring new chord progressions. The intuitive radial layout makes it easy to explore chords in your chosen key, or interesting, complementary chords outside it. If you’re feeling adventurous, the Dynamic Scale feature makes it easy to modulate between keys, even if you’re a music theory beginner.

A Revamped UI
Built around three core pages – Browse, Create and Arrange – the reimagined interface inspires an intuitive and efficient workflow while remaining immediately familiar to fans of Scaler 1 and 2.

Go DAW-less With Standalone
In addition to VST, VST3, AU, and AAX formats, Scaler 3 is now available as a standalone application. Thanks to its new plugin hosting capabilities, and Multi-Track timeline, you can use Scaler 3 as a fully self-contained composition and music production environment – for the first time ever.

More Chord Sets to Discover
Scaler 3 is awash with inspiring chord sets to suit your mood or genre – or choose a chord progression made by an artist. You can also search through scales, add Favourites and select Common Progressions or Uncommon Progressions.

MIDI Editing Once you’ve chosen a performance pattern, it appears in a piano roll as editable MIDI data. From here, you can modify this MIDI in two ways: edit individual notes in the piano roll to override the pattern, or change global note properties like Inversion, Density and Range.

Introductory sale runs from 25th March 2025 to 30th April 2025 (23:59 PST).

Scaler 3
MSRP = £99 / €99 / $99
Intro Sale = £79 / €79 / $79 (20%)

Scaler 3 Upgrade from Scaler 1 & Scaler 2
MSRP = £39 / €39 / $39
Intro Sale = £29 / €29 / $29 (25%)

Available as VST, VST3, AU, AAX and Standalone.

System requirements: macOS 10.14/Windows 8 or higher

For more information please visit: https://www.pluginboutique.com/produ...14563-Scaler-3