Ruby, My Dear in A

Thelonius Monk(1945)ballad
Do Re MiC D E
A
B

Chord Diagrams — Ruby, My Dear in A (Guitar)

Display
FingerNoteDegree
G7♭9
EADGBE11324
EADGBE111x234frEADGBE11xx239frEADGBE11x234
Dm
EADGBExx231
5frEADGBE1113426frEADGBEx4231x10frEADGBE111134
CMaj7
EADGBE231
3frEADGBE1113245frEADGBE111xx410frEADGBE333xx1
A7♭9
EADGBE11x23
5frEADGBE1114236frEADGBE11xx2311frEADGBE11x234
Em
EADGBE23
2frEADGBE113427frEADGBE1113429frEADGBE4312xx
F♯m
EADGBE111134
4frEADGBE11x3425frEADGBExx32419frEADGBE111342
Fm
EADGBE111134
3frEADGBExx13428frEADGBE11134210frEADGBE1142xx
DMaj7
EADGBE111xx
2frEADGBE111x435frEADGBE1113247frEADGBE111xx4
C7♭9
EADGBE11x234
6frEADGBE3241xx8frEADGBE111x239frEADGBExx3142
Gm
EADGBE2134
3frEADGBE1111345frEADGBExx134210frEADGBE111342
D7
EADGBExx213
3frEADGBEx3241x5frEADGBE11113410frEADGBE111132
Am
EADGBEx231
2frEADGBE444x15frEADGBE1111347frEADGBEx1342
FMaj7
EADGBExx321
EADGBE1114233frEADGBE11x3338frEADGBE111324
F♯6
EADGBE2x143x
EADGBE11x3244frEADGBE111x349frEADGBE3333x1
Gaug7
EADGBE4312
EADGBE1x234x5frEADGBExx142310frEADGBE11x432
G♯m/C♯
4frEADGBE111134
6frEADGBExx13427frEADGBExx324111frEADGBE111342
C♯7
EADGBEx3241x
4frEADGBE111x346frEADGBE1114329frEADGBE111132
D♯m
EADGBExx1342
EADGBExx32416frEADGBE11134211frEADGBE111134
F♯Maj7
EADGBE111423
4frEADGBE11x3336frEADGBE111x439frEADGBE111324
C♯7♭9
EADGBE11x234
4frEADGBEx12347frEADGBE3241x9frEADGBExx1324
G♯m
4frEADGBE111134
6frEADGBExx13427frEADGBExx324111frEADGBE111342
G♯dim7
EADGBExx12
EADGBE112x346frEADGBExx132410frEADGBE111234
G6
EADGBE21
EADGBE2x143x5frEADGBE111x3410frEADGBE3333x1
AmMaj7
EADGBEx312
5frEADGBE1111327frEADGBE11x3429frEADGBE11x42x
Bm
EADGBE111342
7frEADGBE1111349frEADGBExx134210frEADGBExx3241
Cm
EADGBEx3214
3frEADGBE1113425frEADGBE1142xx8frEADGBE111134
C7♯9
EADGBEx2134x
3frEADGBE11x328frEADGBE1113249frEADGBExx2134
F7
EADGBE111132
3frEADGBE11x3248frEADGBE11113410frEADGBE111xx2
F♯6/C♯
4frEADGBE111x34
EADGBE2x143xEADGBE11x3249frEADGBE3333x1
G♯7♭9
EADGBE111x2
4frEADGBE11xx235frEADGBE11xx2310frEADGBE11x234
D♯Maj7
EADGBE11333x
3frEADGBE111x436frEADGBE1113248frEADGBE111xx4
Gm7
3frEADGBE111113
5frEADGBE11x4238frEADGBE11x23410frEADGBE111132

Ruby, My Dear in A

Key of A

A major is a rock and blues cornerstone. The open A string delivers a strong root, while both E strings ring as the fifth. Classic A-D-E progressions practically play themselves with open cowboy chords. The open high E is the fifth, reinforcing power. A is a beginner-level key on guitar because the open A string is the root and the open E strings provide the fifth above and below, creating a massive low-end anchor. Beginners will find this key approachable since most chords use open voicings with minimal stretching.

Voice Leading

The bass line moves through G to D (descending perfect fourth), D to C (descending whole step), C to A (descending minor third), A to E (descending perfect fourth), E to F# (ascending whole step), F# to F (descending half step), F to D (descending minor third), D to C (descending whole step), C to G (descending perfect fourth), G to D (descending perfect fourth), D to A (descending perfect fourth), A to F (descending major third), F to F# (ascending half step), F# to G (ascending half step), G to G# (ascending half step), G# to C# (ascending perfect fourth), C# to D# (ascending whole step), D# to F# (ascending minor third), F# to C# (descending perfect fourth), C# to G# (descending perfect fourth), G# to G# (ascending unison), G# to G (descending half step), G to A (ascending whole step), A to B (ascending whole step), B to C (ascending half step), C to C (ascending unison), C to F (ascending perfect fourth), F to F# (ascending half step), F# to G# (ascending whole step), G# to D# (descending perfect fourth), D# to G (ascending major third). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from G to G by unison.

Scales for Improvisation

A 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, A Mixolydian adds the flat seventh for an authentic blues-rock edge.

ballad4/4 · 28 bars · Form: AB

Chords: G7♭9, Dm, CMaj7, A7♭9, Em, F♯m, Fm, DMaj7, C7♭9, Gm, D7, Am, FMaj7, F♯6, Gaug7, G♯m/C♯, C♯7, D♯m, F♯Maj7, C♯7♭9, G♯m, G♯dim7, G6, AmMaj7, Bm, Cm, C7♯9, F7, F♯6/C♯, G♯7♭9, D♯Maj7, Gm7.

Scales for Improvisation A bebop, A bebop major.

Diatonic chords: See all chords in the key of A