**Major Scales**
* **C Major:** C D E F G A B C
* **G Major:** G A B C D E F# G
* **D Major:** D E F# G A B C# D
* **A Major:** A B C# D E F# G# A
* **E Major:** E F# G# A B C# D# E
* **B Major:** B C# D# E F# G# A# B
* **F Major:** F G A Bb C D E F
* **Bb Major:** Bb C D Eb F G A Bb
* **Eb Major:** Eb F G Ab Bb C D Eb
**Major Diatonic Chords (using C Major as an example)**
* I: C Major (C E G)
* ii: d minor (d f a)
* iii: e minor (e g b)
* IV: F Major (F A C)
* V: G Major (G B D)
* vi: a minor (a c e)
* vii°: B diminished (b d f)
**Diatonic Chords**
Here are the diatonic chords for the requested major keys, using Roman numerals:
**C Major**
* I: C Major (C E G)
* ii: d minor (d f a)
* iii: e minor (e g b)
* IV: F Major (F A C)
* V: G Major (G B D)
* vi: a minor (a c e)
* vii°: B diminished (b d f)
**F Major**
* I: F Major (F A C)
* ii: g minor (g bb d)
* iii: a minor (a c e)
* IV: Bb Major (Bb D F)
* V: C Major (C E G)
* vi: d minor (d f a)
* vii°: E diminished (e g bb)
**G Major**
* I: G Major (G B D)
* ii: a minor (a c e)
* iii: b minor (b d f#)
* IV: C Major (C E G)
* V: D Major (D F# A)
* vi: e minor (e g b)
* vii°: F# diminished (f# a c)
**D Major**
* I: D Major (D F# A)
* ii: e minor (e g b)
* iii: f# minor (f# a c#)
* IV: G Major (G B D)
* V: A Major (A C# E)
* vi: b minor (b d f#)
* vii°: C# diminished (c# e g)
**Bb Major**
* I: Bb Major (Bb D F)
* ii: c minor (c eb g)
* iii: d minor (d f a)
* IV: Eb Major (Eb G Bb)
* V: F Major (F A C)
* vi: g minor (g bb d)
* vii°: A diminished (a c eb)
**E Major**
* I: E Major (E G# B)
* ii: F# minor (F# A C#)
* iii: G# minor (G# B D#)
* IV: A Major (A C# E)
* V: B Major (B D# F#)
* vi: C# minor (C# E G#)
* vii°: D# diminished (D# F# A)
**Chord Inversions (C Major, F Major, G Major, D Major, Bb Major, E Major)**
**C Major**
* **C Major (I):**
* Root: C E G
* 1st Inversion: E G C
* 2nd Inversion: G C E
* **d minor (ii):**
* Root: D F A
* 1st Inversion: F A D
* 2nd Inversion: A D F
* **e minor (iii):**
* Root: E G B
* 1st Inversion: G B E
* 2nd Inversion: B E G
* **F Major (IV):**
* Root: F A C
* 1st Inversion: A C F
* 2nd Inversion: C F A
* **G Major (V):**
* Root: G B D
* 1st Inversion: B D G
* 2nd Inversion: D G B
* **a minor (vi):**
* Root: A C E
* 1st Inversion: C E A
* 2nd Inversion: E A C
* **B Diminished (vii°):**
* Root: B D F
* 1st Inversion: D F B
* 2nd Inversion: F B D
**F Major**
* **F Major (I):** F A C, A C F, C F A
* **g minor (ii):** G Bb D, Bb D G, D G Bb
* **a minor (iii):** A C E, C E A, E A C
* **Bb Major (IV):** Bb D F, D F Bb, F Bb D
* **C Major (V):** C E G, E G C, G C E
* **d minor (vi):** D F A, F A D, A D F
* **E diminished (vii°):** E G Bb, G Bb E, Bb E G
**G Major**
* **G Major (I):** G B D, B D G, D G B
* **a minor (ii):** A C E, C E A, E A C
* **b minor (iii):** B D F#, D F# B, F# B D
* **C Major (IV):** C E G, E G C, G C E
* **D Major (V):** D F# A, F# A D, A D F#
* **e minor (vi):** E G B, G B E, B E G
* **F# diminished (vii°):** F# A C, A C F#, C F# A
**D Major**
* **D Major (I):** D F# A, F# A D, A D F#
* **e minor (ii):** E G B, G B E, B E G
* **f# minor (iii):** F# A C#, A C# F#, C# F# A
* **G Major (IV):** G B D, B D G, D G B
* **A Major (V):** A C# E, C# E A, E A C#
* **b minor (vi):** B D F#, D F# B, F# B D
* **C# diminished (vii°):** C# E G, E G C#, G C# E
**Bb Major**
* **Bb Major (I):** Bb D F, D F Bb, F Bb D
* **c minor (ii):** C Eb G, Eb G C, G C Eb
* **d minor (iii):** D F A, F A D, A D F
* **Eb Major (IV):** Eb G Bb, G Bb Eb, Bb Eb G
* **F Major (V):** F A C, A C F, C F A
* **g minor (vi):** G Bb D, Bb D G, D G Bb
* **A diminished (vii°):** A C Eb, C Eb A, Eb A C
**E Major**
* **E Major (I):** E G# B, G# B E, B E G#
* **f# minor (ii):** F# A C#, A C# F#, C# F# A
* **g# minor (iii):** G# B D#, B D# G#, D# G# B
* **A Major (IV):** A C# E, C# E A, E A C#
* **B Major (V):** B D# F#, D# F# B, F# B D#
* **c# minor (vi):** C# E G#, E G# C#, G# C# E
* **d# diminished (vii°):** D# F# A, F# A D#, A D# F#
**Key Notes:**
* **Major Chords:** Root, Major Third, Perfect Fifth.
* **Minor Chords:** Root, Minor Third, Perfect Fifth.
* **Dominant Chords (V7):** Root, Major Third, Perfect Fifth, Minor Seventh.
* **Diminished Chords:** Root, Minor Third, Diminished Fifth.
* **Inversions:** The bass note changes, but the chord remains the same.
* **Roman Numerals:** Uppercase for Major, lowercase for minor, and lowercase with a degree symbol (°) for diminished.
* **7th Chords:** Dominant chords need the seventh added for the V7.
* **Sharp/Flat Maintenance:** Pay close attention to the key signature and maintain any sharps or flats.