I Could Write a Book in C#

Lorenz Hart / Richard Rodgers(1940)swing
Do Re MiC D E
A
G♯13
D♯m11
G♯7/F♯
C♯/F
G♯/C
D♯m11
G♯13
D♯m11
G♯7/F♯
C♯/F
C♯/G♯
Faug7
D♯m7/F♯
C♯69

Chord Diagrams — I Could Write a Book in C# (Guitar)

Display
FingerNoteDegree
C♯Maj7
EADGBE111x43
4frEADGBE1113246frEADGBE11xxx39frEADGBE1x342x
A♯m7
EADGBE111x32
EADGBExx23146frEADGBE1111138frEADGBE11x423
D♯m7
EADGBExx1423
6frEADGBE1111327frEADGBExx231411frEADGBE111114
G♯13
EADGBE111432
4frEADGBE1113244frEADGBE11123410frEADGBE44x213
G♯7
EADGBE111xx2
4frEADGBE1111326frEADGBE11x32411frEADGBE111134
D♯m11
EADGBE11xx34
4frEADGBE11x2349frEADGBE11134211frEADGBE111114
G♯7/F♯
EADGBE111xx2
4frEADGBE1111326frEADGBE11x32411frEADGBE111134
C♯/F
EADGBE11x432
4frEADGBE1112346frEADGBE1113249frEADGBE111342
Edim7
EADGBE123
EADGBExx13246frEADGBEx2314x11frEADGBE112x3x
Gm7♭5
EADGBE3xx421
EADGBE2x341x5frEADGBE222xx110frEADGBEx1324x
C7♭9
EADGBE11x234
6frEADGBE3241xx8frEADGBE111x239frEADGBExx3142
Fm7
EADGBE111113
3frEADGBExx14238frEADGBE1111329frEADGBExx2314
G♯/C
8frEADGBE111432
EADGBE11132x4frEADGBE1113426frEADGBE11x243
Bdim7
EADGBE11x234
EADGBExx13246frEADGBE3x142x7frEADGBE111234
D♯7
EADGBExx1324
6frEADGBE111x348frEADGBE111xx211frEADGBE111132
G♯m7
4frEADGBE111113
6frEADGBE11x4239frEADGBE11x23x11frEADGBE111132
C♯7♭9
EADGBE11x234
4frEADGBEx12347frEADGBE3241x9frEADGBExx1324
F♯Maj7
EADGBE111423
4frEADGBE11x3336frEADGBE111x439frEADGBE111324
B13
EADGBE44x213
EADGBE1111344frEADGBE1114327frEADGBE111234
C♯/G♯
4frEADGBE111234
EADGBE11x4326frEADGBE1113249frEADGBE111342
Faug7
EADGBE1234x
3frEADGBExx14238frEADGBE11x43212frEADGBE213x4x
D♯m7/F♯
EADGBExx1423
6frEADGBE1111327frEADGBExx231411frEADGBE111114
G♯7♭9
EADGBE111x2
4frEADGBE11xx235frEADGBE11xx2310frEADGBE11x234
C♯69
EADGBE11x432
EADGBE11x2348frEADGBE11123410frEADGBExx2134

I Could Write a Book in C#

Key of C#

C# major (or Db) sits in barre chord territory across the fretboard. Every chord demands precise barring, but the payoff is a bright, crystalline sound a half step above C that cuts through a band mix. C# is a intermediate-advanced-level key on guitar because no open strings fall within the key naturally, so every chord requires full barre technique. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.

Voice Leading

The bass line moves through C# to A# (descending minor third), A# to D# (ascending perfect fourth), D# to G# (ascending perfect fourth), G# to G# (ascending unison), G# to D# (descending perfect fourth), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth), C# to E (ascending minor third), E to G (ascending minor third), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to G# (ascending minor third), G# to B (ascending minor third), B to D# (ascending major third), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to B (ascending perfect fourth), B to C# (ascending whole step), C# to F (ascending major third), F to D# (descending whole step), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth). The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from C# to C# by unison.

Scales for Improvisation

C# major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, C# Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 33 bars · Form: A

Chords: C♯Maj7, A♯m7, D♯m7, G♯13, G♯7, D♯m11, G♯7/F♯, C♯/F, Edim7, Gm7♭5, C7♭9, Fm7, G♯/C, Bdim7, D♯7, G♯m7, C♯7♭9, F♯Maj7, B13, C♯/G♯, Faug7, D♯m7/F♯, G♯7♭9, C♯69.

Scales for Improvisation C# bebop, C# bebop major.

Diatonic chords: See all chords in the key of C#