Available Note Scale の分類 コードの役割から使用する音階が違ってきます
| TMajor Chord | Ionian Scale | X7 Chord | Altered Scale | |
| TMinor Chord | Natural Minor Scale | Diminished Scale | ||
| Harmonic Minor Scale | Mixo−Lydian Scale | |||
| Melodic Minor Scale | Harmonic Minor Perfect 5↓ Scale | |||
| (Minor Key の場合) | ||||
| X7+5 Chord | Whole Tone Scale | |||
| W Chord | Lydian Scale | Y7 Chord (X7 of U) |
Altered Scale | |
| W7 Chord | Lydian 7th Scale | Diminished Scale | ||
| Harmonic Minor Perfect 5↓ Scale | ||||
| V7 Chord (X7 of Y) |
Altered Scale | |||
| Diminished Scale | ||||
| bU Chord | Lydian Scale | Harmonic Minor Perfect 5↓ Scale | ||
| bV Chord | Z7 Chord (X7 of V) |
Altered Scale | ||
| bX Chord | Diminished Scale | |||
| bY Chord | Harmonic Minor Perfect 5↓ Scale | |||
| bZ Chord | U7 Chord (X7 of X) |
Lydian 7th Scale | ||
| (Major Key の場合) | ||||
| Altered Scale | ||||
| Diminished Scale | ||||
| (Minor Key の場合) | ||||
| Um7 Chord | Dorian Scale | |||
| Vm7 Chord | Phgygian Scale | |||
| Dorian Scale | bU7 Chord (Substitute for X7) |
Lydian 7th Scale | ||
| (X7 of Uと組合ったU−Xの場合) | ||||
| Wm7 Chord | Dorian Scale | bV7 Chord (Substitute for Y7) |
Lydian 7th Scale | |
| Ym7 Chord | Aeorian Scale | |||
| Dorian Scale | bY7 Chord (Substitute for U7) |
Lydian 7th Scale | ||
| (X7 of Xと組合ったU−Xの場合) | ||||
| bZ7 Chord (Substitute for V7、Ym) |
Lydian 7th Scale | |||
| Um7 b5 Chord | Locrian Scale | Y7 Chord (Substitute for bV7) |
Lydian 7th Scale | |
| Altered Dorian Scale | ||||
| Vm7 b5 Chord | Locrian Scale | |||
| Altered Dorian Scale | ||||
| #Wm7 b5 Chord | Locrian Scale | C dim Chord (Ebdim, F#dim, Adim) |
C, Eb, F#, Aいずれかの | |
| Altered Dorian Scale | Combination Diminished Scale | |||
| C# dim Chord (Edim, Gdim, Bb dim) |
C#, E, G, Bbいずれかの | |||
| Combination Diminished Scale | ||||
| D dim Chord (Fdim, Ab dim, Bdim) |
D, F, Ab, Bいずれかの | |||
| Combination Diminished Scale | ||||
| 'K' Note Jazz Place | ||||