A pocket harmony reference

Scale Chord Patterns

Pick a key. Tap a step to see its notes.

Root key

Sharp names only

Every mode starts on C.

MajorMinorDiminished

W = whole step · H = half step. Each card shows the degree and root note.
Note names use sharps throughout. m7(−5) means a minor seventh chord with a lowered fifth.

Tap any note to find it on the guitar.

5↓ = lowered fifth, one semitone below a perfect fifth.

7↓ = lowered seventh, one semitone below a major seventh. Dominant 7 = major triad + lowered seventh.

All 7 scale notes

Triad · 1, 3, 5

Seventh chord · 1, 3, 5, 7

Guitar · Standard tuning

Frets 0–12 · 0 = open string.
Low E (thickest) on the left; high E (thinnest) on the right.

5↓ = lowered fifth.

Dominant 7: major triad + lowered seventh (7↓). Outlined notes are the major third and lowered seventh—the pair that creates tension.