Tuning-specific arpeggio diagram

A Major Arpeggio in Open C Tuning

A Major Arpeggio in Open C Tuning shows the same a major arpeggio chord tones across 6 strings tuned C G C G C E. The tuning changes where the same chord tones sit across the fretboard.

Chord tones: A, C#, E
Formula: 1 3 5
Semitones: 0 4 7
Chord symbols: Amaj, AM
Tuning: C G C G C E
Strings: 6
Open pitch range: C2 to E4
24-fret range: C2 to E6

Open strings and root positions

1 of the 6 open strings belong to A Major Arpeggio: string 1 E (5). None of those open-string tones is the A root, so the root must be fretted on every string.

String 1E5

First root on each string

String 6Fret 9

String 5Fret 2

String 4Fret 9

String 3Fret 2

String 2Fret 9

String 1Fret 5

Low-string pattern

On the lowest C string, the first-octave arpeggio pattern falls at frets 1, 4, and 9, with the A root at fret 9. On the highest E string, the first A is at fret 5.

Fret 1C#3

Fret 4E5

Fret 9A1

Practice this tuning-specific layout

Play A Major Arpeggio on the low C string at frets 1, 4, and 9, saying each note name and degree aloud.
Build a phrase that lets E on open string 1 ring, then connect it to the nearest A root and two other arpeggio tones.
Connect the A root positions on strings 6 through 1 at frets 9, 2, 9, 2, 9, and 5, adding the nearest arpeggio tone between each pair of roots.