Major Scale Triads

If you've read the tutorial covering the theory behind building 7th chords, then you should find the following easy enough to understand.

The tables below show the 7th chords contained in all the major keys. There's no substitute for knowing the theory behind this, and being able to work it all out for yourself, so please don't just try to learn all of these parrot-fashion. Really, I've included it here so that if you want to try and work out triads for a major scale, you can use these tables to check if you've got it right.

C Major - C D E F G A B

I	C7	C - E - G - B
ii	Dm7	D - F - A - C
iii	Em7	E - G - B - D
IV	F7	F - A - C - E
V	G7	G - B - D - F
vi	Am7	A - C - E - G
viiø	Bø7	B - D - F - A

G Major - G A B C D E F#

I	G7	G - B - D - F#
ii	Am7	A - C - E - G
iii	Bm7	B - D - F# - A
IV	C7	C - E - G - B
V	D7	D - F# - A - C
vi	Em7	E - G - B - D
viiø	F#ø7	F# - A - C - E

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

I	D7	D - F# - A - C#
ii	Em7	E - G - B - D
iii	F#m7	F# - A - C# - E
IV	G7	G - B - D - F#
V	A7	A - C# - E - G
vi	Bm7	B - D - F# - A
viiø	C#ø7	C# - E - G - B

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

I	A7	A - C# - E - G#
ii	Bm7	B - D - F# - A
iii	C#m7	C# - E - G# - B
IV	D7	D - F# - A - C#
V	E7	E - G# - B - D
vi	F#m7	F# - A - C# - E
viiø	G#ø7	G# - B - D - F#

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

I	E7	E - G# - B - D#
ii	F#m7	F# - A - C# - E
iii	G#m7	G# - B - D# - F#
IV	A7	A - C# - E - G#
V	B7	B - D# - F# - A
vi	C#m7	C# - E - G# - B
viiø	D#ø7	D# - F# - A - C#

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

I	B7	B - D# - F# - A#
ii	C#m7	C# - E - G# - B
iii	D#m7	D# - F# - A# - C#
IV	E7	E - G# - B - D#
V	F#7	F# - A# - C# - E
vi	G#m7	G# - B - D# - F#
viiø	A#ø7	A# - C# - E - G#

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

I	F#7	F# - A# - C# - E#
ii	G#m7	G# - B - D# - F#
iii	A#m7	A# - C# - E# - G#
IV	B7	B - D# - F# - A#
V	C#7	C# - E# - G# - B
vi	D#m7	D# - F# - A# - C#
viiø	E#ø7	E# - G# - B - D#

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

I	C#7	C# - E# - G# - B#
ii	D#m7	D# - F# - A# - C#
iii	E#m7	E# - G# - B# - D#
IV	F#7	F# - A# - C# - E#
V	G#7	G# - B# - D# - F#
vi	A#m7	A# - C# - E# - G#
viiø	B#ø7	B# - D# - F# - A#

Gb Major - Gb Ab Bb Cb Db Eb F

I	Gb7	Gb - Bb - Db - F
ii	Abm7	Ab - Cb - Eb - Gb
iii	Bbm7	Bb - Db - F - Ab
IV	Cb7	Cb - Eb - Gb - Bb
V	Db7	Db - F - Ab - Cb
vi	Ebm7	Eb - Gb - Bb - Db
viiø	Fø7	F - Ab - Cb - Eb

Db Major - Db Eb F Gb Ab Bb C

I	Db7	Db - F - Ab - C
ii	Ebm7	Eb - Gb - Bb - Db
iii	Fm7	F - Ab - C - Eb
IV	Gb7	Gb - Bb - Db - F
V	Ab7	Ab - C - Eb - Gb
vi	Bbm7	Bb - Db - F - Ab
viiø	Cø7	C - Eb - Gb - Bb

Ab Major - Ab Bb C Db Eb F G

I	Ab7	Ab - C - Eb - G
ii	Bbm7	Bb - Db - F - Ab
iii	Cm7	C - Eb - G - Bb
IV	Db7	Db - F - Ab - C
V	Eb7	Eb - G - Bb - Db
vi	Fm7	F - Ab - C - Eb
viiø	Gø7	G - Bb - Db - F

Eb Major - Eb F G Ab Bb C D

I	Eb7	Eb - G - Bb - D
ii	Fm7	F - Ab - C - Eb
iii	Gm7	G - Bb - D - F
IV	Ab7	Ab - C - Eb - G
V	Bb7	Bb - D - F - Ab
vi	Cm7	C - Eb - G - Bb
viiø	Dø7	D - F - Ab - C

Bb Major - Bb C D Eb F G A

I	Bb7	Bb - D - F - A
ii	Cm7	C - Eb - G - Bb
iii	Dm7	D - F - A - C
IV	Eb7	Eb - G - Bb - D
V	F7	F - A - C - Eb
vi	Gm7	G - Bb - D - F
viiø	Aø7	A - C - Eb - G

Fb Major - F G A Bb C D E

I	F7	F - A - C - E
ii	Gm7	G - Bb - D - F
iii	Am7	A - C - E - G
IV	Bb7	Bb - D - F - A
V	C7	C - E - G - Bb
vi	Dm7	D - F - A - C
viiø	Eø7	E - G - Bb - D

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