Chord & FretIonian (C)
Ionian is simply another name for the familiar major scale — the do-re-mi everyone has sung. It is the reference point of tonal music, in other words, music with a clear home note that everything returns to for rest. It sounds open, bright and settled, and its degrees generate the chords behind most songs we know. Whenever a piece is "in a major key," this is the scale doing the work behind the scenes.
Example: C – D – E – F – G – A – BFormula: 1 – 2 – 3 – 4 – 5 – 6 – 7In the formula, the numbers are degrees — positions counted in the reference major scale; "b" lowers a half step and "#" raises one.
Family: The seven modes of the major scale.
The diatonic modes share the same pattern of tones and semitones but reorganize the center. To sound modal you have to reinforce the center and the characteristic degree — if the music keeps resolving to C, the ear hears C major, not D Dorian.
Chords in the harmonic field
These are the seven chords born from this scale — one built on each of its notes. Put another way: the set of chords that sounds naturally "inside" the scale. See the harmonic field of every key →
Cmaj7Dm7Em7Fmaj7G7Am7Bm7b5The same scale on all four instruments
In the diagrams, each dot carries its scale degree — 1 is the tonic, highlighted.
What you see above is one box of Ionian per instrument; the full map lives in the app. In Chord & Fret, you drill it in Exercise mode — in thirds, pairs or sequences, with the BPM climbing every repetition; switch the dot labels between degrees, note names and fingers; and choose to start from the tonic or play the full box. Start free. Unlock everything with Pro. 100% offline. See it in Chord & Fret →