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ChordBasics3
Circleof5ths
Alteredchord
hitoshikawai.com
オルタードコード=ルート以外を円の対
称となるスケールから使う
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#13 #11
G7alt
(b5b9#9b13)
G7のb13
G7の#9
G7のb9
C
F#
Gb
GF
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
2つのキーがトライトーンを
共有し、対称となる
C
GF
B
D
E
A
Cスケール
F#
Gb
E#
F
C#
Db
B
Cb
A#
Bb
D#
Eb
G#
Ab
F# (Gb)スケール
C
F#
Gb
GF
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
Aオルタードコードはドミナントの
1以外の⾳を対称の⾳に代替する事
C
F#
Gb
G
1
F
7
C#
Db
B
3
A#
Bb
D#
Eb
G#
Ab
D
E
A
G7
(GBF)
C
F#
Gb
G
F  3
E#
C# 1
Db
B
7
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#7 (C#E#B)
C
F#
Gb
GF
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#7 (C#BE#)
37(BF)は共有するので、
ルート以外は対称の⾳を使
うと考える
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#7b5
G7b5
C
F#
Gb
G
1
F
7
C#
Db
B
3
A#
Bb
D#
Eb
G#
Ab
D
5
E
A
G7
(GBDF)
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
5th
E
13th
A
9th
C#7の5th
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#7
 (C#E#G#B)
C#7の5th
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#7 #11
G7b5b9
G7のb9
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
5
E
13
A
9
G7 (GBF)
C#7の9
C#7の13
C#7の5
C
F#
Gb
G
F
E#
C#
Db
B
A#
Bb
D#
Eb
G#
Ab
D
E
A
C#13 #11
G7alt
(b5b9#9b13)
G7のb13
G7の#9
G7のb9
オルタードコード
37(BF)を共有し、全てトライトーンで
結ばれる⾳を使っている
ルート以外、円の反対側となる
スケールに並べ替えると、オルタードスケールとなる
G Ab A# B C# D# F
Circleof5ths
Alteredchord
ChordBasics
hitoshikawai.com

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サークルオブフィフス オルタードコードとスケール