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Audio & Music/Composition & MIDI

Scaler 2

Music theory and chord progression tool

Visit pluginboutique.com

External link. Not endorsed — curated for usefulness.

What is Scaler 2?

Scaler 2 is a VST/AU music plugin that assists musicians and producers with chord progression composition and music theory application, developed by Plugin Boutique. The tool operates as an interactive chord intelligence system within digital audio workstations, allowing users to explore harmonic relationships, generate progressions, and harmonize melodies in real time.

The plugin functions as a chord suggestion engine that analyzes tonal context and offers musically coherent progression options based on selected scales and modes. Users input key signatures and chord qualities, then receive suggestions aligned with common songwriting patterns and jazz harmony principles. Scaler 2 integrates chord detection, allowing it to recognize progressions played on MIDI instruments or audio sources. The interface includes a scale library covering standard modes, exotic scales, and user-defined tunings. A progression sequencer lets producers build and audition multi-chord arrangements before integration into their DAW session. The tool outputs MIDI data directly into compatible instruments, enabling instant playback of suggestions within existing arrangements.

Scaler 2 serves songwriters, film composers, electronic music producers, and music educators seeking to accelerate harmonic ideation or learn music theory interactively. It works across major DAWs including Ableton Live, Logic Pro, Cubase, and FL Studio via VST3, VST2, and AU formats on both Windows and macOS systems. The plugin operates as a paid download with occasional promotional bundling through Plugin Boutique's storefront, which frequently includes free sound packs or discount vouchers with purchases.

The software positions itself as an alternative to similar theory-focused tools like Captain Chords, Hookpad, and Melodyne's harmonic capabilities. While Captain Chords emphasizes progression generation for songwriters, Scaler 2 prioritizes interactive real-time manipulation and scale exploration within t