Fretwise Get the app

Guitar scale · pentatonic & blues

B Iwato Scale

Japanese five-note scale 1 ♭2 4 ♭5 ♭7, with a half step and a tritone.

Notes BCEFA
Formula 1 ♭2 4 ♭5 ♭7
Steps H 4 H 4 W
Mood Tense, Dark, Unsettled
Heard in Japanese Traditional Music, Film Scores

Interactive scale diagram

B Iwato Scale · Standard tuning

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E

Tap any note to hear it.

B Iwato Scale tab: all 5 positions

Each tab climbs from the low E string to the high e string. Play it up, then back down.

Position 1 · E shape frets 7–10
e|------------------------7-8-|
B|---------------------10-----|
G|----------------9-10--------|
D|---------7-9-10-------------|
A|-----7-8--------------------|
E|-7-8------------------------|
Position 2 · D shape frets 9–12
e|-----------------------12-|
B|-----------------10-12----|
G|------------9-10----------|
D|-------9-10---------------|
A|----12--------------------|
E|-12-----------------------|
Position 3 · C shape frets 11–14
e|-------------------------12-13-|
B|-------------------12-13-------|
G|----------------14-------------|
D|-------------14----------------|
A|-------12-14-------------------|
E|-12-13-------------------------|
Position 4 · A shape frets 14–17
e|----------------------------17-|
B|-------------------------17----|
G|----------------14-16-17-------|
D|----------14-15----------------|
A|----14-15----------------------|
E|-17----------------------------|
Position 5 · G shape frets 16–19
e|-------------------------17-19-|
B|-------------------17-18-------|
G|-------------16-17-------------|
D|----------19-------------------|
A|-------19----------------------|
E|-17-19-------------------------|

How to play B Iwato on guitar

Find the root first: B is at fret 7 on the low E string and fret 2 on the A string. The blue notes on the diagram are every B on the neck; the gold ones are the rest of the scale's home chord (4, ♭7), the safest notes to land on at the end of a phrase.

Learn it one box at a time. Position 1, the E shape, sits at frets 7–10. Once it's under your fingers, move to position 2 (the D shape) and play the notes the two boxes share, then keep going up the neck. After all five, the scale joins up into one pattern across the whole fretboard.

Degrees

DegreeNote
1 B
♭2 C
4 E
♭5 F
♭7 A

Fretwise · Free on iPhone & Android

Practise B Iwato anywhere, even offline.

This page is a small slice of Fretwise. The app adds practice: exercises that play as tab, a new routine every day, and the tools to tune and keep time. On iPhone, iPad and Android, no sign-up.

Free

  • 65 scales and 56 chord types in every key, with CAGED shapes
  • A tuner with 10 tunings and a metronome from 30 to 260 BPM
  • A new Daily 15 routine every day, plus free exercises
  • Maqam & makam between the frets, and the Name the Note quiz

One purchase

  • 282 exercises that play as tab, and routines with a speed trainer
  • Chord & Scale Finder: tap the neck, get the name
  • Theory Lab and the Progression Builder with 51 genre loops
  • No subscription, ads removed

Questions

What notes are in the B Iwato Scale?
The B Iwato Scale has 5 notes: B, C, E, F, A.
What is the formula of the iwato scale?
1 ♭2 4 ♭5 ♭7, which is the step pattern H 4 H 4 W (W = whole step, H = half step).
Where do I play B Iwato on the guitar?
The root B is at fret 7 on the low E string and fret 2 on the A string. Position 1 (the E shape) covers frets 7–10, and four more positions connect it up the neck.

Iwato Scale in every key

More scales in B