Key of C#

Everything on this site that is rooted on C#: the twenty scales and modes, the twenty-three chord qualities, the seven chords that belong to the key, the capo positions that produce it from an open shape, the tunings whose home note it is, and the fretboard maps.

Key signature: C# major · F# C# G# D# A# E# B#
Notes of C# major: C# D# E# F# G# A# B#
Degrees of C# major: 1 2 3 4 5 6 7
Relative minor: Bb minor — the same notes, tonic on the sixth degree
Notes of C# natural minor: C# D# E F# G# A B
Relative major: E major
A fifth above (dominant): Ab
A fourth above (subdominant): F#
Tunings rooted here: none of the tunings on this site
Capo positions with open shapes: capo 1 → C shapes · capo 4 → A shapes · capo 6 → G shapes · capo 9 → E shapes · capo 11 → D shapes

Chords that belong to the key

The seven triads built on the major scale, and the seventh chord on each degree.

Numeral	Triad	Notes	Triad page	Seventh	Seventh page
I	C#	C# E# G#	C#	C#maj7	C#maj7
ii	D#m	D# F# A#	D#m	D#m7	D#m7
iii	Fm	F Ab C	Fm	Fm7	Fm7
IV	F#	F# A# C#	F#	F#maj7	F#maj7
V	G#	G# B# D#	G#	G#7	G#7
vi	A#m	A# C# E#	A#m	A#m7	A#m7
vii°	Cdim	C Eb Gb	Cdim	Cm7b5	Cm7b5

Numeral

Triad

Notes

Triad page

Seventh

Seventh page

C# E# G#

C#maj7

D#m

D# F# A#

D#m

D#m7

iii

F Ab C

Fm7

F# A# C#

F#maj7

G# B# D#

G#7

A#m

A# C# E#

A#m

A#m7

vii°

Cdim

C Eb Gb

Cdim

Cm7b5

Scales and modes on C#

All twenty scales on this site, set out on the same root.

Scale	Page	Degrees	Notes
Major	C# major	1 2 3 4 5 6 7	C# D# E# F# G# A# B#
Ionian	C# ionian	1 2 3 4 5 6 7	C# D# E# F# G# A# B#
Dorian	C# dorian	1 2 b3 4 5 6 b7	C# D# E F# G# A# B
Phrygian	C# phrygian	1 b2 b3 4 5 b6 b7	C# D E F# G# A B
Lydian	C# lydian	1 2 3 #4 5 6 7	C# D# E# F## G# A# B#
Mixolydian	C# mixolydian	1 2 3 4 5 6 b7	C# D# E# F# G# A# B
Natural minor	C# natural minor	1 2 b3 4 5 b6 b7	C# D# E F# G# A B
Aeolian	C# aeolian	1 2 b3 4 5 b6 b7	C# D# E F# G# A B
Locrian	C# locrian	1 b2 b3 4 b5 b6 b7	C# D E F# G A B
Harmonic minor	C# harmonic minor	1 2 b3 4 5 b6 7	C# D# E F# G# A B#
Melodic minor (ascending)	C# melodic minor (ascending)	1 2 b3 4 5 6 7	C# D# E F# G# A# B#
Major pentatonic	C# major pentatonic	1 2 3 5 6	C# D# E# G# A#
Minor pentatonic	C# minor pentatonic	1 b3 4 5 b7	C# E F# G# B
Blues scale	C# blues scale	1 b3 4 b5 5 b7	C# E F# G G# B
Phrygian dominant	C# phrygian dominant	1 b2 3 4 5 b6 b7	C# D E# F# G# A B
Lydian dominant	C# lydian dominant	1 2 3 #4 5 6 b7	C# D# E# F## G# A# B
Whole tone	C# whole tone	1 2 3 #4 #5 b7	C# D# E# F## G## A##
Diminished (half-whole)	C# diminished (half-whole)	1 b2 b3 3 #4 5 6 b7	C# D E E# F## G# A# B
Diminished (whole-half)	C# diminished (whole-half)	1 2 b3 4 b5 b6 6 7	C# D# E F# G A A# B#
Chromatic	C# chromatic	1 2 3 4 5 6 7 8 9 10 11 12	C# D D# E F F# G G# A A# B C

Scale

Page

Degrees

Notes

Major

C# major

1 2 3 4 5 6 7

C# D# E# F# G# A# B#

Ionian

C# ionian

1 2 3 4 5 6 7

C# D# E# F# G# A# B#

Dorian

C# dorian

1 2 b3 4 5 6 b7

C# D# E F# G# A# B

Phrygian

C# phrygian

1 b2 b3 4 5 b6 b7

C# D E F# G# A B

Lydian

C# lydian

1 2 3 #4 5 6 7

C# D# E# F## G# A# B#

Mixolydian

C# mixolydian

1 2 3 4 5 6 b7

C# D# E# F# G# A# B

Natural minor

C# natural minor

1 2 b3 4 5 b6 b7

C# D# E F# G# A B

Aeolian

C# aeolian

1 2 b3 4 5 b6 b7

C# D# E F# G# A B

Locrian

C# locrian

1 b2 b3 4 b5 b6 b7

C# D E F# G A B

Harmonic minor

C# harmonic minor

1 2 b3 4 5 b6 7

C# D# E F# G# A B#

Melodic minor (ascending)

C# melodic minor (ascending)

1 2 b3 4 5 6 7

C# D# E F# G# A# B#

Major pentatonic

C# major pentatonic

1 2 3 5 6

C# D# E# G# A#

Minor pentatonic

C# minor pentatonic

1 b3 4 5 b7

C# E F# G# B

Blues scale

C# blues scale

1 b3 4 b5 5 b7

C# E F# G G# B

Phrygian dominant

C# phrygian dominant

1 b2 3 4 5 b6 b7

C# D E# F# G# A B

Lydian dominant

C# lydian dominant

1 2 3 #4 5 6 b7

C# D# E# F## G# A# B

Whole tone

C# whole tone

1 2 3 #4 #5 b7

C# D# E# F## G## A##

Diminished (half-whole)

C# diminished (half-whole)

1 b2 b3 3 #4 5 6 b7

C# D E E# F## G# A# B

Diminished (whole-half)

C# diminished (whole-half)

1 2 b3 4 b5 b6 6 7

C# D# E F# G A A# B#

Chromatic

C# chromatic

1 2 3 4 5 6 7 8 9 10 11 12

C# D D# E F F# G G# A A# B C

Chords on C#

All twenty-three chord qualities on this site, set out on the same root.

Chord	Page	Degrees	Notes	Quality
C#	C#	1 3 5	C# E# G#	Major
C#m	C#m	1 b3 5	C# E G#	Minor
C#dim	C#dim	1 b3 b5	C# E G	Diminished
C#aug	C#aug	1 3 #5	C# E# G##	Augmented
C#sus2	C#sus2	1 2 5	C# D# G#	Suspended second
C#sus4	C#sus4	1 4 5	C# F# G#	Suspended fourth
C#maj7	C#maj7	1 3 5 7	C# E# G# B#	Major seventh
C#m7	C#m7	1 b3 5 b7	C# E G# B	Minor seventh
C#7	C#7	1 3 5 b7	C# E# G# B	Dominant seventh
C#m7b5	C#m7b5	1 b3 b5 b7	C# E G B	Half-diminished seventh
C#dim7	C#dim7	1 b3 b5 bb7	C# E G Bb	Diminished seventh
C#6	C#6	1 3 5 6	C# E# G# A#	Sixth
C#m6	C#m6	1 b3 5 6	C# E G# A#	Minor sixth
C#add9	C#add9	1 9 3 5	C# D# E# G#	Added ninth
C#9	C#9	1 9 3 5 b7	C# D# E# G# B	Dominant ninth
C#m9	C#m9	1 9 b3 5 b7	C# D# E G# B	Minor ninth
C#maj9	C#maj9	1 9 3 5 7	C# D# E# G# B#	Major ninth
C#11	C#11	1 9 3 11 5 b7	C# D# E# F# G# B	Dominant eleventh
C#m11	C#m11	1 9 b3 11 5 b7	C# D# E F# G# B	Minor eleventh
C#13	C#13	1 9 3 5 13 b7	C# D# E# G# A# B	Dominant thirteenth
C#7sus4	C#7sus4	1 4 5 b7	C# F# G# B	Dominant seventh suspended fourth
C#7b5	C#7b5	1 3 b5 b7	C# E# G B	Dominant seventh flat five
C#7#9	C#7#9	1 3 5 b7 #9	C# E# G# B D##	Dominant seventh sharp nine

Chord

Page

Degrees

Notes

Quality

1 3 5

C# E# G#

Major

C#m

1 b3 5

C# E G#

Minor

C#dim

1 b3 b5

C# E G

Diminished

C#aug

1 3 #5

C# E# G##

Augmented

C#sus2

1 2 5

C# D# G#

Suspended second

C#sus4

1 4 5

C# F# G#

Suspended fourth

C#maj7

1 3 5 7

C# E# G# B#

Major seventh

C#m7

1 b3 5 b7

C# E G# B

Minor seventh

C#7

1 3 5 b7

C# E# G# B

Dominant seventh

C#m7b5

1 b3 b5 b7

C# E G B

Half-diminished seventh

C#dim7

1 b3 b5 bb7

C# E G Bb

Diminished seventh

C#6

1 3 5 6

C# E# G# A#

Sixth

C#m6

1 b3 5 6

C# E G# A#

Minor sixth

C#add9

1 9 3 5

C# D# E# G#

Added ninth

C#9

1 9 3 5 b7

C# D# E# G# B

Dominant ninth

C#m9

1 9 b3 5 b7

C# D# E G# B

Minor ninth

C#maj9

1 9 3 5 7

C# D# E# G# B#

Major ninth

C#11

1 9 3 11 5 b7

C# D# E# F# G# B

Dominant eleventh

C#m11

1 9 b3 11 5 b7

C# D# E F# G# B

Minor eleventh

C#13

1 9 3 5 13 b7

C# D# E# G# A# B

Dominant thirteenth

C#7sus4

1 4 5 b7

C# F# G# B

Dominant seventh suspended fourth

C#7b5

1 3 b5 b7

C# E# G B

Dominant seventh flat five

C#7#9

1 3 5 b7 #9

C# E# G# B D##

Dominant seventh sharp nine

Fretboard maps

Map	Page	Contents
C# major	note map	every position to fret 22 as note names
C# degrees	degree map	the same positions as degrees of the major and natural minor scales
All keys	index	the twelve key maps and the chromatic reference

Map

Page

Contents

C# major

note map

every position to fret 22 as note names

C# degrees

degree map

the same positions as degrees of the major and natural minor scales

All keys

index

the twelve key maps and the chromatic reference

Related keys

RelativeKey of Bbshares every note with C#
ParallelC# natural minorthe same tonic, a different third, sixth and seventh
DominantKey of Aba fifth above C#; its tonic chord is the dominant of this key
SubdominantKey of F#a fourth above C#; its tonic chord is the fourth chord of this key
CircleCircle of fifthswhere C# sits relative to the other eleven keys
SignatureKey signaturesthe accidentals of every key, including the enharmonic spellings
CapoCapo charthow to reach C# with open shapes

All twelve keys: C · C# · D · Eb · E · F · F# · G · Ab · A · Bb · B

ScaleC# major7 notes · 1 2 3 4 5 6 7
ScaleC# natural minor7 notes · 1 2 b3 4 5 b6 b7
Neck mapC# — note mapC# major · frets 0–22 · C# D# E# F# G# A# B#
DegreesC# — degree mapC# major and natural minor · frets 0–22
ChordC# — Major1 3 5 · C# E# G#
ChordC#m7 — Minor seventh1 b3 5 b7 · C# E G# B
KeyKey of BbBb C D Eb F G A · Bb major / G minor
HubScales and modes12 roots × 20 scales
HubChords12 roots × 23 qualities
CapoCapo chart12 capo positions × 24 target keys

Section: Atlas · Theory Atlas