Harmonia Functional - H. J. Koellreutter

The $I^o$ degree is the tonic, $IV^o$ is the Subdominant and $V^o$ is the Dominant

Analysing George Harrison - Something

Something

I   I       V7/IV   IV      V7/V    V
C   Cmaj7   C7      F       D7      G    

$C7$ is the secondary dominant of $F$, and $D^7$ is the secondary dominant of $G$

Tip - Chromatics

The notes are scaling up in a chromatic form:

Tip - Dominant

The dominant chord wants to take you to a major or minor chord.

To find you can go up a fifth and make a dominant seventh chord

Secondary dominant from a diatonic chord

In G:

G       Am      Bm      C       D       Em      F#dim
I       II      III     IV      V       VI      VII         

Hey Jude using the Five of Five

Radiohead - Creep using the five of six, the 7th is actually optional.

On Ten years gone:

Chord progression

I	$VIb$	I	VI
A	F6	A	F6

I	$V/vii^o$?	I	VI
A	D#dim	A6	G6

A major scale

Degree	I	II	III	IV	V	VI	VII
Major Scale	A	B	C#	D	E	F#	G#

Secondary dominant

Degree	I	II	III	IV	V	VI	VII
Major Scale	A	B	C#	D	E	F#	G#
Secondary dominant	E	F#	G#	A	B	C#	D#

Menor melodic T 2M 3m 4j 5j 6m 7M m7M m5dim7m M5aug m M M m5dim7m

Setimas

m7M m5dim7m M5aug7M m7m M7m M7m m5dim7m

4535

A major scale - Diatonic chords

Degree	$\bf{I}$	$\bf{II}$	$\bf{iii}$	$\bf{iv}$	$\bf{V}$	$\bf{vi}$	$\bf{vii^o}$
Major Scale	A	B	C#	D	E	F#	G#
Diatonic Chords	A	Bm	C#m	D	E	F#m	$\bf{G\#^{dim}}$
Secondary dominant	E	F#	G#	A	B	C#	D#
Diatonic Chords	E	F#m	G#m	A	B	C#m	$\bf{D\#^{dim}}$

Qestion

D#dim = five of VII?

Diatonic chords of major keys

Major scale

Minor scale

Cycle of thirds