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Chord & Fret

Ionian on guitar (C)

Ionian in C: C – D – E – F – G – A – B. On the guitar, six strings open the scale into wide shapes — there is room to choose the region of the neck that sings best. The box shown runs from fret 1 to 4 — it is the CAGED C form; the lowest tonic sits on the 5th string, fret 3, and the hand stays put in the region, with no position shift. Its hollow wooden body gives every chord a warm, natural ring that blooms and fades on its own.

Once the shape is memorized, play the box in thirds — the real memory test.

Scale diagramHorizontal fretboard with 6 strings, frets 0–4.1234345671234567712345
Frets 1–4 · CAGED C

In the diagram, each dot carries its scale degree — 1 is the tonic, highlighted.

This is one shape of Ionian on guitar — this neck alone holds 4 more mapped positions. In Chord & Fret, you press play and watch each note light up on the diagram the instant it sounds; flip between position boxes and three-notes-per-string, with CAGED forms named; and choose to start from the tonic or play the full box. Start free. Unlock everything with Pro. 100% offline. Open in Chord & Fret →

See the full explanation of the Ionian scale →