How to use the AutoChords progression analyzer
The progression analyzer is one of the tools offered by AutoChords, a free and interactive platform designed for musicians of all levels. Whether you play guitar, piano, ukulele or charango, this tool allows you to create, analyze and save your chord progressions with a complete harmonic analysis of keys and degrees.
Multi-instrument progression analyzer
The progression analyzer supports four instruments: guitar, piano, ukulele and charango. Build your progressions by selecting the chords of your choice, and the tool automatically detects possible keys by analyzing harmonic degrees. Each progression can be visualized with chord diagrams corresponding to your instrument, making it easier to learn and practice your favorite chord sequences.
Main features
Custom progression building
Add chords of your choice by selecting the root, quality (Major, Minor, Diminished, Augmented), then enrichments (7th, suspensions, extensions). Build simple or complex progressions suitable for all musical styles, from blues to jazz, pop and rock.
Automatic harmonic analysis
The tool automatically analyzes your progression and detects possible keys (major and minor). Select the key of your choice to display the harmonic degrees (I, II, III, IV, V, VI, VII) of each chord. A detailed table also presents the interval composition of each chord and the scale corresponding to the chosen key.
Key change and transposition
Easily change the key of your progression while preserving harmonic degrees. This feature allows you to instantly transpose your progression to another key, ideal for adapting a piece to your vocal range or exploring different harmonic colors.
Progression saving and management
Save your favorite progressions with a custom name to find them easily. Manage your progression library, load them with one click, export them or delete those you no longer need. All your progressions are stored locally in your browser.
Advanced options
Use the alteration switch (♭/♮/♯) to navigate between sharps and flats when building your chords. The degrees banner displays the harmonic structure of your progression in real time. The export button allows you to download your progressions to share or archive them.
Why use the AutoChords progression analyzer?
- Automatic detection of possible keys (major and minor)
- Analysis of harmonic degrees to understand the structure of your progressions
- Instant key change with degree preservation
- Unlimited saving of your favorite progressions
- Intuitive and responsive interface, usable on computer, tablet and mobile
- Pedagogical table of intervals and scale for each key
- Visualization of chords on your instrument (guitar, piano, ukulele, charango)
- 100% free tool, no registration required