::|CONTENTS
- Tensions
- Major 7th Chord
- Minor 7th Chord
- Dominant 7th Chord
- Half-Diminished 7th Chord
- Fully Diminished 7th Chord
- Dominant 7th Suspended 4th Chord
- Dominant 7th Flat 5th Chord
- Augmented 7th Chord
- Augmented Major 7th Chord
- Minor Major 7th Chord
- Major 6th Chord
- Minor 6th Chord
- See Also
An
upper structure triad is simply a fancy name for placing a triad on top of another seventh chord to create complex chords with relatively simple voicings. They are especially handy for chiptune because these triads can be simply represented by a separate arpeggio.
This page lists most possibilities that observe the usual chord formation rules from jazz. Each chord has five columns:
-
UST: The Roman numeral of the upper structure triad, relative to the chord's root.
-
Chord: The chord's canonical spelling. Triads producing the same extended chord are grouped together.
-
Notes: All notes of the chord on C, from the lowest to highest.
-
Base: The lowest note of the triad, relative to the chord's root. 0 means that one of the notes coincides with the root.
-
Arp: The
arpeggio parameter that produces the notes of the triad. It is possibly inverted so that the arp doesn't cross an octave.
Check
this out if there are terms that you don't understand!
(TODO: maybe manually add the ones that use both #5/b5 or #9/b9?)
Tensions
Chord
♭9
9
♯9
10
11
♯11
♭13
13
M7
.
X
X
.
.
X
.
X
m7
X
X
.
.
X
X
.
X
7
X
X
X
.
.
X
X
X
m7(♭5)
X
X
.
.
X
.
X
X
o7
X
X
.
.
X
.
X
.
7sus4
X
X
.
X
.
.
.
X
7(♭5)
X
X
X
.
.
.
X
X
7(♯5)
X
X
X
.
.
X
.
.
M7(♯5)
.
X
X
.
.
X
.
.
mM7
.
X
.
.
X
X
.
X
6
X
X
X
.
.
X
.
.
m6
X
X
.
.
X
X
.
.
Major 7th Chord
Available tensions: 9, ♯9, ♯11, 13
UST
Chord
Notes
Base
Arp
vi
M7(13)
0
049
♯ivo
M7(♯11,13)
0
069
V
M9
2
059
vii
M9(♯11)
2
049
II
M13(♯11)
2
047
i
V+
VII+
♭III+
M7(♯9)
0
3
3
3
037
048
048
048
vio
M7(♯9,13)
0
039
io
VII
M7(♯9,♯11)
0
3
036
038
♯iio
M13(♯9,♯11)
3
036
Minor 7th Chord
Available tensions: ♭9, 9, 11, ♯11, 13
UST
Chord
Notes
Base
Arp
vio
m7(13)
0
039
IV
m7(11,13)
0
059
io
♭iii
m7(♯11)
0
3
036
037
♯ivo
♯iio
m7(♯11,13)
0
3
069
036
vo
m7(♭9)
1
069
♭vii
m11(♭9)
1
049
IV+
VI+
♭II+
m13(♭9)
1
1
1
048
048
048
♭V
m7(♭9,♯11)
1
059
♭v
m13(♭9,♯11)
1
058
v
m9
2
058
♭VII
m11
2
038
ii
m13
2
037
II+
♭V+
♭VII+
m9(♯11)
2
2
2
048
048
048
II
m13(♯11)
2
047
Dominant 7th Chord
Available tensions: ♭9, 9, ♯9, ♯11, ♭13, 13
UST
Chord
Notes
Base
Arp
I+
III+
♭VI+
7(♭13)
0
0
0
048
048
048
vi
7(13)
0
049
♯ivo
7(♯11,13)
0
069
♯io
♯vio
vo
7(♭9)
1
1
1
036
039
069
♭ii
7(♭9,♭13)
1
037
VI
7(♭9,13)
1
038
♭V
7(♭9,♯11)
1
059
♭v
13(♭9,♯11)
1
058
v
9
2
058
II+
♭V+
♭VII+
9(♯11)
2
2
2
048
048
048
II
13(♯11)
2
047
i
♭III
7(♯9)
0
3
037
047
♭VI
7(♯9,♭13)
0
038
vio
7(♯9,13)
0
039
io
♭iii
7(♯9,♯11)
0
3
036
037
♯iio
13(♯9,♯11)
3
036
Half-Diminished 7th Chord
Available tensions: ♭9, 9, 11, ♭13, 13
UST
Chord
Notes
Base
Arp
♭VI
m7(♭5,♭13)
0
038
vio
♯ivo
♯iio
m7(♭5,13)
0
0
3
039
069
036
iv
m7(♭5,11,♭13)
0
058
IV
m7(♭5,11,13)
0
059
♭V
m7(♭5,♭9)
1
059
♭v
m7(♭5,♭9,13)
1
058
♭vii
m11(♭5,♭9)
1
049
♭II
m11(♭5,♭9,♭13)
1
047
IV+
VI+
♭II+
m13(♭5,♭9)
1
1
1
048
048
048
II+
♭V+
♭VII+
m9(♭5)
2
2
2
048
048
048
II
m9(♭5,13)
2
047
♭VII
m11(♭5)
2
038
iio
m11(♭5,♭13)
2
036
ii
m13(♭5)
2
037
Fully Diminished 7th Chord
Available tensions: ♭9, 9, 11, ♭13
UST
Chord
Notes
Base
Arp
♭VI
o7(♭13)
0
038
IV
o7(11)
0
059
iv
o7(11,♭13)
0
058
♭v
o7(♭9)
1
058
IV+
VI+
♭II+
o11(♭9)
1
1
1
048
048
048
♭II
o11(♭9,♭13)
1
047
II
o9
2
047
ii
o11
2
037
iio
o11(♭13)
2
036
Dominant 7th Suspended 4th Chord
Available tensions: ♭9, 9, 10, 13
UST
Chord
Notes
Base
Arp
IV
7(13)sus4
0
059
♭vii
vo
7(♭9)sus4
1
1
049
069
IV+
VI+
♭II+
7(♭9,13)sus4
1
1
1
048
048
048
♭VII
v
9sus4
2
2
038
058
ii
9(13)sus4
2
037
I
iiio
7(10)sus4
0
4
047
036
vi
7(10,13)sus4
0
049
Dominant 7th Flat 5th Chord
Available tensions: ♭9, 9, ♯9, ♭13, 13
UST
Chord
Notes
Base
Arp
I+
III+
♭VI+
7(♭5,♭13)
0
0
0
048
048
048
vi
♯ivo
7(♭5,13)
0
0
049
069
♯vio
♭V
7(♭5,♭9)
1
1
039
059
♭ii
7(♭5,♭9,♭13)
1
037
VI
♭v
7(♭5,♭9,13)
1
1
038
058
II+
♭V+
♭VII+
9(♭5)
2
2
2
048
048
048
II
9(♭5,13)
2
047
io
♭iii
7(♭5,♯9)
0
3
036
037
♭VI
7(♭5,♯9,♭13)
0
038
vio
♯iio
7(♭5,♯9,13)
0
3
039
036
Augmented 7th Chord
Available tensions: ♭9, 9, ♯9, ♯11
UST
Chord
Notes
Base
Arp
♭ii
♯vio
7(♯5,♭9)
1
1
037
039
♭V
7(♯5,♭9,♯11)
1
059
II+
♭V+
♭VII+
9(♯5,♯11)
2
2
2
048
048
048
♭VI
7(♯5,♯9)
0
038
io
♭iii
7(♯5,♯9,♯11)
0
3
036
037
Augmented Major 7th Chord
Available tensions: 9, ♯9, ♯11
UST
Chord
Notes
Base
Arp
♯vo
M9(♯5)
2
069
vii
M9(♯5,♯11)
2
049
♭VI
♭vi
M7(♯5,♯9)
0
3
038
058
io
VII
M7(♯5,♯9,♯11)
0
3
036
038
Minor Major 7th Chord
Available tensions: 9, 11, ♯11, 13
UST
Chord
Notes
Base
Arp
vio
mM7(13)
0
039
IV
mM7(11,13)
0
059
io
VII
mM7(♯11)
0
3
036
038
♯ivo
♯iio
mM7(♯11,13)
0
3
069
036
V
mM9
2
059
viio
mM11
2
039
ii
mM13
2
037
vii
mM9(♯11)
2
049
II
mM13(♯11)
2
047
Major 6th Chord
Available tensions: ♭9, 9, ♯9, ♯11
UST
Chord
Notes
Base
Arp
♯ivo
6(♯11)
0
069
♯io
VI
6(♭9)
1
1
036
038
♭v
6(♭9,♯11)
1
058
II
6(9,♯11)
2
047
i
vio
6(♯9)
0
0
037
039
io
♯iio
6(♯9,♯11)
0
3
036
036
Minor 6th Chord
Available tensions: ♭9, 9, 11, ♯11
UST
Chord
Notes
Base
Arp
IV
m6(11)
0
059
io
♯ivo
♯iio
m6(♯11)
0
0
3
036
069
036
IV+
VI+
♭II+
m6(♭9,11)
1
1
1
048
048
048
♭v
m6(♭9,♯11)
1
058
ii
m6(9,11)
2
037
II
m6(9,♯11)
2
047
See Also
-
I Am New To Harmony
-
Arps