At Tonality, we believe in empowering musicians to unlock the full potential of their creativity. Our innovative app listens to your music in real time and instantly identifies the key and scale, providing you with an intuitive visual map of every note and triad within that musical framework—directly on the guitar fretboard.

Whether you’re composing, improvising, or simply exploring new musical ideas, Tonality bridges the gap between sound and theory, making complex concepts accessible to players of all levels. Our mission is to help guitarists deepen their understanding of harmony and enhance their playing experience by offering precise, actionable insights.

Developed by musicians for musicians, Tonality is more than just a tool—it’s your personal guide to mastering the fretboard and bringing your musical ideas to life.

What is Tonality?

Tonality is a powerful and intelligent companion for guitarists and bassists who want to gain deeper insight into their music. Designed for modern players, Tonality listens to your music—whether you're jamming, composing, or analyzing a track—and accurately detects the key and scale in real time. Once identified, Tonality translates this information into a fully interactive fretboard, highlighting every note and triad available within that musical context.

How It Works

Using advanced audio recognition algorithms and machine learning, Tonality analyzes the harmonic content of your input, whether from a recording, a live performance, or even isolated riffs. Within moments, Tonality determines the key signature (major, minor, modal, or other exotic scales) and presents a complete visual breakdown on your chosen instrument's fretboard.

Customizable for Every Player

Tonality is built with versatility at its core, designed to adapt to a wide variety of stringed instruments and playing styles:

🎸 Standard and Extended-Range Guitars

• Supports 6, 7, and 8-string guitars, whether you’re in standard tuning, drop tunings, half-step down, or even custom tunings like open tunings or progressive extended tunings.
• The app recalibrates the fretboard view according to your tuning, so every note and chord position is displayed with precision.

🎸 4 and 5-String Bass

• Whether you’re using a 4-string bass in standard EADG, a 5-string bass with a low B, or experimenting with alternate tunings, Tonality ensures accurate mapping of all scale tones and triads across the neck.

Features

• Real-Time Key & Scale Detection: Get instant feedback as you play or upload audio.
• Fretboard Visualization: See every note and triad in the current key and scale directly on a dynamic fretboard.
• Tuning Flexibility: Input any tuning configuration for your guitar or bass and watch the fretboard adjust automatically.
• Triad & Note Highlighting: Toggle between seeing all scale notes or focusing on triads (major, minor, diminished, augmented).
• Multiple Scale Types: Support for major, minor, modal (Dorian, Mixolydian, etc.), pentatonic, harmonic minor, melodic minor, and exotic/world scales.
• Musician-Centric Design: Built by musicians, Tonality prioritizes intuitive navigation and clear, insightful visuals tailored to your playing.

Who It's For

From guitarists exploring new tunings, to bassist crafting complex grooves, to composers experimenting with modal interchange, Tonality is the perfect tool to make theory practical. It’s ideal for players of all levels—from hobbyists wanting to better understand the fretboard to professionals seeking fast, reliable harmonic insights.