Preparing your workspace
Preparing your workspace
Explore the toolkit
Practical fretboard tools, music theory, and realistic audio in one focused workspace.
Find your way around
Start with the tool that matches your question, then move between the shared fretboard, theory, and playback views.
Chord Names Use the interactive chord finder to select notes on the fretboard. The app automatically detects chord names, shows inversions, and provides audio playback. Experiment with different tunings and display modes.
Chord Shapes Browse chords organized by type (maj, m, 7, etc.). Each chord page shows multiple voicings with fretboard diagrams, fingerings, and listen buttons.
Scales Select a scale type to view its pattern on the fretboard. Choose different roots, adjust playback settings, and study scale construction with detailed interval information.
Scale Info Explore the complete scale database with descriptions, technical details, and preview diagrams. Use the filter to find specific scales or browse by category.
Progressions Use the progression generator to create sequences of chords. Choose between literal mode (chord names) or roman numeral mode (scale degrees). Play back progressions with adjustable tempo, strum patterns, and arpeggio options.
Voicing Routes Open the voicing finder in the progression generator, choose the fretboard and voice-leading constraints, and compare the Easiest, Smoothest, and Most colourful routes. Apply a route to use its shapes for playback and sharing.
Harmonise a Melody Switch to the chord-melody workspace and capture notes by typing, clicking the fretboard, or using a MIDI keyboard. Set the key, harmony, fret limit, stretch, and movable-position preference, then preview or replace the chord selected for each melody note.
Tonnetz Watch the live tone network beneath the progression controls while playing chords. Horizontal connections show fifths, while diagonal connections show major and minor thirds.
Ear Training Test your musical ear with interval and chord recognition quizzes. Listen to audio examples and select the correct answer from multiple choices to improve your listening skills.
Chord Intervals Select a chord to see its interval composition and how it relates to the root note. Understand the theoretical structure of different chord types.
Shapes Browse different fretboard shapes and patterns to understand position playing and movable chord forms. Practice common guitar patterns across the neck.
Intervals Study musical intervals with visual fretboard representations. Learn to identify and play intervals in different positions.
Under the hood
Reliable theory calculations and sampled guitar audio power every interactive view.
Music theory calculations are powered by the tonal library, with custom chord detection algorithms for advanced pitch-class analysis. Audio playback uses Tone.js with high-quality sampled guitar recordings for realistic sound.
The app features a comprehensive database of chord shapes and scale patterns, all presented through an intuitive fretboard interface. Some chord shapes are sourced from open databases such as tombatossals's chords-db and adapted for this application.