My Guitar Notes

C# ionian scale

The first mode of the major scale. Identical in pitch content to the major scale; the mode name is used when the scale is being treated as one of the seven rotations of the same set of notes rather than as a key.

Root
C# (also written Db)
Scale
Ionian
Type
mode, mode 1 of seven
Notes
C# D# E# F# G# A# B#
Notes in the scale
7
Degree formula
1 2 3 4 5 6 7
Semitones from the root
0 2 4 5 7 9 11
Step pattern
W W H W W W H
Aliases
Major
Parent major scale
C# major
Key signature of this root
C# major / A# minor · F# C# G# D# A# E# B#
Written use
Named 1 2 3 4 5 6 7. Its tonic triad is major.

Notes and degrees

Each degree of the scale, its note name in this key, and its distance from the root in semitones.

DegreeNoteSemitonesInterval from the root
1C#0Perfect unisontonic
2D#2Major second
3E#4Major third
4F#5Perfect fourth
5G#7Perfect fifth
6A#9Major sixth
7B#11Major seventh

Positions on the guitar

The five windows below are computed, not copied from a shape chart. The script locates the lowest occurrence of C# on each of the five upper strings within the first twelve frets and takes a five-fret window centred on it. Because a scale repeats every twelve frets, these five windows cover the whole neck; the same sequence returns an octave higher. The positions are numbered from the lowest fret upwards, so position 1 is always the window nearest the nut and position 5 the window nearest the twelfth fret.

Position 1

Root on the 2nd string B3 at fret 2. 17 notes of the scale inside this window.

String01234
1st (highest) string E4FF#G#
2nd string B3CC#D#
3rd string G3G#A#
4th string D3D#FF#
5th string A2A#CC#
6th string E2FF#G#

Position 2

Root on the 5th string A2 at fret 4. 18 notes of the scale inside this window.

String23456
1st (highest) string E4F#G#A#
2nd string B3C#D#F
3rd string G3A#CC#
4th string D3FF#G#
5th string A2CC#D#
6th string E2F#G#A#

Position 3

Root on the 3rd string G3 at fret 6. 18 notes of the scale inside this window.

String45678
1st (highest) string E4G#A#C
2nd string B3D#FF#
3rd string G3CC#D#
4th string D3F#G#A#
5th string A2C#D#F
6th string E2G#A#C

Position 4

Root on the 6th string E2 at fret 9. 18 notes of the scale inside this window.

String7891011
1st (highest) string E4CC#D#
2nd string B3F#G#A#
3rd string G3D#FF#
4th string D3A#CC#
5th string A2FF#G#
6th string E2CC#D#

Position 5

Root on the 4th string D3 at fret 11. 18 notes of the scale inside this window.

String910111213
1st (highest) string E4C#D#F
2nd string B3G#A#C
3rd string G3FF#G#
4th string D3CC#D#
5th string A2F#G#A#
6th string E2C#D#F

Read the grid as a chord diagram: the top row is the first string. Degrees appear in the notes and degrees table above; a filled cell is a note of the scale, and the shaded cell is the tonic.

Related keys and modes

Related