Bb
Ionian Mode
(Originally A#)
Note: A# Minor → Bb Minor
A# Major contains double sharps (C##, F##) and is rarely used in practice
Bb Major is the standard key with 2 flats, very common in wind instruments and jazz.
Scale Notes
Bb1+0 semitones
C2+2 semitones
D3+4 semitones
Eb4+5 semitones
F5+7 semitones
G6+9 semitones
A7+11 semitones
Scale Information
| Root Note | Bb (from A#) | Scale Type | Ionian Mode |
| Category | Modal | Number of Notes | 7 |
Interval Pattern
Semitones: 0 - 2 - 4 - 5 - 7 - 9 - 11
Pattern repeats every octave (12 semitones)
A#0
B1
C2
C#3
D4
D#5
E6
F7
F#8
G9
G#10
A11
← Scroll horizontally to see all notes →
Understanding the Pattern: The numbers above show the interval distances between scale notes in semitones (half-steps). The highlighted notes like this are the notes that belong to this scale. This pattern can be moved to any starting note to create the same scale in different keys - that's how scales work across all 12 keys!
Scale Overview
Description
The 1st mode of the major scale, identical to the major scale
Musical Context
This modal scale contains 7 notes and is commonly used in Jazz and Wind instruments music. This scale requires some musical experience to master effectively.
Characteristics
BrightHappyStableMajor tonality
Practice Guide
Key Signature
2 flats (Bb, Eb)
Bb - C - D - Eb - F - G - A
Difficulty Level
IntermediateCircle of Fifths
Very popular in jazz and wind instruments (trumpet, clarinet)
Common Genres
JazzWind instrumentsClassicalBrass
Common Uses
Classical music
Pop music
Traditional harmony
Practice Tips
- • Practice ascending and descending patterns
- • Try different rhythmic variations
- • Experiment with skipping notes (thirds, fourths)
- • Use as a basis for improvisation