4-string bass · E A D G tuning
Bass Map
Arpeggios, circle of fifths, natural harmonics, modes and scales. The key bar stays at the top while you scroll: the circle, the modes, the scales and the note map follow the chosen key. The arpeggios always show every root, with the key’s root highlighted.
Key: C
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TonicThirdFifthSeventh2nd, 4th, 6th
Chord arpeggios
Every note of the chord in a 5-fret window, root on the E or A string. The number underneath is the window’s first fret.
Major
Minor
Seventh
Maj 7
Min 7
C
D
E
F
G
A
B
Circle of fifths
Natural harmonics
OctaveFifthMajor third
| Fret | Harmonic | Interval from the open string |
|---|---|---|
| 12 | 2nd | Octave |
| 7 · 19 | 3rd | Octave + fifth |
| 5 · 24 | 4th | Two octaves |
| 4 · 9 · 16 | 5th | Two octaves + major third (slightly flat) |
| ≈3.2 · ≈31 (off the fingerboard) | 6th | Two octaves + fifth |
Modes and scales
Relative modes of C majorIC Ionianmajor1 2 3 4 5 6 7
iiD Dorian1 2 ♭3 4 5 6 ♭7
iiiE Phrygian1 ♭2 ♭3 4 5 ♭6 ♭7
IVF Lydian1 2 3 ♯4 5 6 7
VG Mixolydian1 2 3 4 5 6 ♭7
viA Aeoliannatural minor1 2 ♭3 4 5 ♭6 ♭7
vii°B Locrian1 ♭2 ♭3 4 ♭5 ♭6 ♭7
C major pentatonic1 2 3 5 6
A minor pentatonic1 ♭3 4 5 ♭7
A harmonic minor1 2 ♭3 4 5 ♭6 7
A melodic minorascending / jazz1 2 ♭3 4 5 6 7
Notes on the neck
Frets 0–12TonicIn the keyNot in the key