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Interactive Bass Scale Guide

Bb/A# Chromatic Bass Scale

Explore the Bb/A# Chromatic on 4, 5, and 6-string bass fretboards with interactive looper, note charts, TAB, and metronome practice.

🎸 Open in Interactive Fretboard

4-String Bass TAB & Notation

Copy this 1-octave ASCII TAB chart or follow along with the looper above: 

G|----------------------------0--1--2--3---|
D|-------------0--1--2--3--4---------------|
A|-1--2--3--4------------------------------|
E|-----------------------------------------|

Scale Notes & Interval Formula

Notes: Bb - B - C - Db - D - Eb - E - F - Gb - G - Ab - A

Bb Chromatic is the same set of pitches as A# Chromatic; this page spells the notes from Bb.

1
Bb
Step: H
♭2
B
Step: H
2
C
Step: H
♭3
Db
Step: H
3
D
Step: H
4
Eb
Step: H
♭5
E
Step: H
5
F
Step: H
♭6
Gb
Step: H
6
G
Step: H
♭7
Ab
Step: H
7
A
Step: H

Interactive Fretboard Chart

Filter:

Golden badges indicate the root note; purple badges mark active scale degrees.

Nut
1
2
3
4
5
6
7
8
9
10
11
12
G
G
Ab
A
Bb
B
C
Db
D
Eb
E
F
Gb
G
D
D
Eb
E
F
Gb
G
Ab
A
Bb
B
C
Db
D
A
A
Bb
B
C
Db
D
Eb
E
F
Gb
G
Ab
A
E
E
F
Gb
G
Ab
A
Bb
B
C
Db
D
Eb
E

Musical Character & Application

Character: All twelve pitch classes with no diatonic hierarchy.

Typical Use: Position drills, approach notes, enclosures, and fretboard memorization.

Play it into the exact-pitch bass trainer and see which notes you hit, or practise it over a ready-made line from the multi-track MIDI bass riffs.

Frequently Asked Questions

What notes are in the Bb/A# Chromatic bass scale?

The notes of the Bb Chromatic bass scale are: Bb - B - C - Db - D - Eb - E - F - Gb - G - Ab - A. The degree formula is: 1 - ♭2 - 2 - ♭3 - 3 - 4 - ♭5 - 5 - ♭6 - 6 - ♭7 - 7. Bb Chromatic is the same set of pitches as A# Chromatic; this page spells the notes from Bb.

What is the musical character and typical use of the Chromatic scale?

All twelve pitch classes with no diatonic hierarchy. Common musical uses: Position drills, approach notes, enclosures, and fretboard memorization.

How do I practice the Bb/A# Chromatic on 4, 5, and 6-string bass?

Use Basnote's interactive fretboard to switch between 4-string (EADG), 5-string (BEADG), and 6-string (BEADGC) charts, hear real-time audio playback, and follow animated bass TAB with adaptive tempos.