Degrees and chords
Progression
Add chords from the degree details. Drag a chord to reorder it; with focus on a chord, Shift plus the arrow keys moves it.
Look up a scale, a key or an interval without using the selector.
All 12 keys in major, minor and the five modes: notes, chords and tensions for each degree.
The major keys with their key signature, relative minor, V7 and IV.
From the second to the octave plus the 9, 11 and 13 tensions: name, semitones, chord symbol and an example on C.
Grados is a free tool, with no account needed, for studying modal and jazz harmony. Pick a tonic and a scale (major, minor or one of the seven modes) and see every degree with its seventh chord, the available tensions and the notes to avoid, all with sound.
The chord-scale of each degree comes from shifting the source scale; a tension is available if it sits a whole step above the chord tone below it, and if it sits a half step above it is an avoid note. Chords use American notation: C, D♭, F♯, CMaj7, Dm7, G7.
To start, pick a tonic and a mode in the form above and press Start. Dorian is a good first mode: it sounds minor, with the major sixth as its characteristic note. If you already know the major scale, compare it with Dorian and Mixolydian on the same tonic and listen for the note that changes.
Add chords from the degree details. Drag a chord to reorder it; with focus on a chord, Shift plus the arrow keys moves it.