My Guitar Notes

Bb lydian scale

The fourth mode of the major scale: a major scale with a raised fourth. Everything else matches the major scale.

Root
Bb (also written A#)
Scale
Lydian
Type
mode, mode 4 of seven
Notes
Bb C D E F G A
Notes in the scale
7
Degree formula
1 2 3 #4 5 6 7
Semitones from the root
0 2 4 6 7 9 11
Step pattern
W W W H W W H
Parent major scale
F major
Key signature of this root
Bb major / G minor · Bb Eb
Written use
Named 1 2 3 #4 5 6 7. Its tonic triad is major, and the chord on the second degree is major rather than minor.

Notes and degrees

Each degree of the scale, its note name in this key, and its distance from the root in semitones.

DegreeNoteSemitonesInterval from the root
1Bb0Perfect unisontonic
2C2Major second
3D4Major third
#4E6Tritone
5F7Perfect fifth
6G9Major sixth
7A11Major seventh

Positions on the guitar

The five windows below are computed, not copied from a shape chart. The script locates the lowest occurrence of Bb on each of the five upper strings within the first twelve frets and takes a five-fret window centred on it. Because a scale repeats every twelve frets, these five windows cover the whole neck; the same sequence returns an octave higher. The positions are numbered from the lowest fret upwards, so position 1 is always the window nearest the nut and position 5 the window nearest the twelfth fret.

Position 1

Root on the 5th string A2 at fret 1. 17 notes of the scale inside this window.

String0123
1st (highest) string E4EFG
2nd string B3CD
3rd string G3GABb
4th string D3DEF
5th string A2ABbC
6th string E2EFG

Position 2

Root on the 3rd string G3 at fret 3. 18 notes of the scale inside this window.

String12345
1st (highest) string E4FGA
2nd string B3CDE
3rd string G3ABbC
4th string D3EFG
5th string A2BbCD
6th string E2FGA

Position 3

Root on the 6th string E2 at fret 6. 17 notes of the scale inside this window.

String45678
1st (highest) string E4ABbC
2nd string B3EFG
3rd string G3CD
4th string D3GABb
5th string A2DEF
6th string E2ABbC

Position 4

Root on the 4th string D3 at fret 8. 18 notes of the scale inside this window.

String678910
1st (highest) string E4BbCD
2nd string B3FGA
3rd string G3DEF
4th string D3ABbC
5th string A2EFG
6th string E2BbCD

Position 5

Root on the 2nd string B3 at fret 11. 17 notes of the scale inside this window.

String910111213
1st (highest) string E4DEF
2nd string B3ABbC
3rd string G3EFG
4th string D3CD
5th string A2GABb
6th string E2DEF

Read the grid as a chord diagram: the top row is the first string. Degrees appear in the notes and degrees table above; a filled cell is a note of the scale, and the shaded cell is the tonic.

Related keys and modes

Related