Ichikosucho scale on guitar
Ichikosucho is a Japanese gagaku mode: the major scale with an added raised fourth.
| Notes in A | A B C# D Eb E F# G# |
|---|---|
| Formula | 1 2 3 4 b5 5 6 7 |
| Steps | W W H H H W W H (W whole step, H half step) |
| Note count | 8 |
| Style in the app | Far Eastern, scale "Ichikosucho" |
Play A Ichikosucho on the fretboard in Guitar Upscale
About the Ichikosucho scale
Gagaku is the old court music of Japan. Ichikosucho holds the major scale plus a raised 4th, eight notes in all.
With both the 4th and the raised 4th it can sound like major or like Lydian, depending on which note you stress.
Use the raised 4th as a step from the 4th up to the 5th.
Intervals from the root
| Degree | Interval | Semitones | In A |
|---|---|---|---|
| 1 | Root | 0 | A |
| 2 | Major 2nd | 2 | B |
| 3 | Major 3rd | 4 | C# |
| 4 | Perfect 4th | 5 | D |
| b5 | Tritone | 6 | Eb |
| 5 | Perfect 5th | 7 | E |
| 6 | Major 6th | 9 | F# |
| 7 | Major 7th | 11 | G# |
Same notes, another starting note
Start the A Ichikosucho scale on another of its notes and you get these scales:
- From degree 2 (B): B Bebop Minor (Bebop Dorian)
- From degree 5 (E): E Bebop Dominant
- From degree 7 (G#): G# Locrian with a Natural Fifth
Ichikosucho in every key
| Key | Notes | Play it |
|---|---|---|
| C | C D E F Gb G A B | Open |
| Db | Db Eb F Gb G Ab Bb C | Open |
| D | D E F# G Ab A B C# | Open |
| Eb | Eb F G Ab A Bb C D | Open |
| E | E F# G# A Bb B C# D# | Open |
| F | F G A Bb Cb C D E | Open |
| F# | F# G# A# B C C# D# E# | Open |
| G | G A B C Db D E F# | Open |
| Ab | Ab Bb C Db D Eb F G | Open |
| A | A B C# D Eb E F# G# | Open |
| Bb | Bb C D Eb Fb F G A | Open |
| B | B C# D# E F F# G# A# | Open |