page 2 of 2
Naming intervals by number and tonality name
Interval
Upper pitch is
two semitones
lower
(than the major
scale of the lower
tonic note)
Upper pitch is
one semitone
lower
(than the major
scale of the lower
tonic note)
Upper pitch
is within the
major scale
(of the lower
tonic note)
Upper pitch is
one semitone
higher
(than the major
scale of the lower
tonic note)
Unison, Octave,
4th, 5th
Diminished Perfect Augmented
2nd, 3rd,
6th, 7th
Diminished Minor Major Augmented
Ia
Ib
Ic
V7a
V7b
V7c V7d
1423 567
CC
Chord name Symbol Root 3rd 5th 7th
Major X X 4st 3st
Minor Xm X 3 4
Diminished
X
°
X33
Augmented
X
+
X44
Major 7 Xmaj7 X 4st 3st 4st
Dominant 7 X7 X 4 3 3
Minor 7 Xm7 X 3 4 3
Half Diminished 7
or
Minor 7
b
5
X
7
or
Xm7
b
5
X 334
Diminished 7
X
°
7
X 333
Augmented 7
X
+
7
X 442
st = semitone steps between two successive pitches
Basic cadences
Perfect
5-1 (
V- I )
Plagal
4-1 (
IV-I)
Interrupted
5-6 (
V-vi)
Imperfect
1-5 (
I-V)
2-5 (
ii-V)
4-5 (
IV-V)
6-5 (
vi-V)
Scale degree names
(Roman numerals
refer to major scale)
1 Tonic
I
2 Supertonic
ii
3 Mediant
iii
4 Subdominant
IV
5 Dominant
V
6 Submediant
vi
7 Leading note
vii
8 Upper tonic
VIII
Standard chord progressions
1 4 5 1 4 7 3 6 2 5 1
1 5 6 4 1 6 2 5 1
1 4 6 5 6 2 5 1
1
b
7 4
2 5 1 6
1 5 6 3 4 1 4 5 1 4 3 6
1 7 3 6
Triads and 7th Chords (built above C)
Diatonic 7th Chords (in C major)
root root1st
inversion
1st
inversion
2nd
inversion
2nd
inversion
3rd
inversion
5 6