Choose a key and view its major or minor diatonic chords, scale degrees, seventh chords, playback, and copy tools. Choose a key to see its diatonic chords, scale degrees, and harmonic functions. Select a root, mode, and chord type. The result shows all seven degrees with chord names and Roman numerals. The tool is designed to give a quick answer without hiding the musical logic. Explore the controls, listen whenever playback is available, and compare alternatives before choosing what fits your song. It is especially useful for finding which chords belong to a key and for transposing progressions by degree. It also supports harmony study, songwriting, rehearsal, and setlist preparation. Results can be copied and combined with the other tools in the Musician Toolkit. Try the same example in different keys. Comparing scale degrees, intervals, and notes helps you recognize patterns that appear in many songs. It is the set of diatonic chords built from the notes of a scale, organized by degree. Yes. Switch from triads to seventh chords. Yes. Scale degrees make it easier to create and transpose progressions.Harmonic Field Generator
About this tool
How to use
How to use the harmonic field generator
When this tool is most useful
Study tip
Frequently asked questions
What is a harmonic field?
Can I show seventh chords?
Is it useful for songwriting?
Chords & harmony
Harmonic Field Generator
Generate diatonic chords for any major or minor key with Roman numerals, seventh chords, playback and copy tools.
⚙ Optimized processing