fuaranScale Mastery
SCALE · ON BASS GUITAR

A♯ Iwato

Japanese 5-note Locrian-adjacent scale — 1 ♭2 4 ♭5 ♭7. Suspended, unresolved colour.

MEIMIDIHumdrum
Choose a root
Tempo120 bpm

Playback sounds an octave below the written notation — the instrument's concert (sounding) pitch.

Audio source: tonejs-instruments by Nick Brosowsky (MIT)

Engraved by Verovio 6.2.0-43f8060 5 title A♯ Iwato Verovio
Tuning
FretboardTuning: EADG
35791215EADGEG♯A♯BD♯EA♯BD♯EG♯A♯BD♯EG♯A♯BD♯EG♯A♯BD♯EG♯A♯
Related scales
Same scale, other instruments
Same scale, other tonics
Modes built on this tonic
Theory reference
Questions
What notes are in the A♯ Iwato scale?

The A♯ Iwato scale uses the notes A♯, B, D♯, E, G♯ (one octave; the pattern repeats at higher registers).

What's the Iwato scale formula?

The Iwato scale follows the interval pattern H 4 H 4 W, where W = whole step (2 semitones) and H = half step (1 semitone). Apply that pattern starting on A♯ to get the A♯ Iwato scale.

What chords work over A♯ Iwato?

Try chord pairings derived from the scale's third, fifth, and seventh degrees as roots — they share the most diatonic notes.

How do I finger A♯ Iwato on Bass Guitar?

On bass, scales follow the same position-pattern logic as guitar but with two-notes-per-string most often. Walking-bass-line construction draws on chord-tone-arpeggiation through the scale; see /walking-bass for the standalone surface (once it ships).

When would I use the Iwato scale?

Japanese 5-note Locrian-adjacent scale — 1 ♭2 4 ♭5 ♭7. Suspended, unresolved colour.