Tuning-specific scale diagram

Bb Phrygian Scale in 7-String Drop G Tuning

Bb Phrygian Scale in 7-String Drop G Tuning shows the same bb phrygian scale pitch classes across 7 strings tuned G D G C F A D. The seventh string extends the pattern below a six-string layout while keeping the upper strings familiar.

Scale notes: Bb, Cb, Db, Eb, F, Gb, Ab
Formula: 1 b2 b3 4 5 b6 b7
Semitones: 0 1 3 5 7 8 10
Parent scale: Gb major
Tuning: G D G C F A D
Strings: 7
Open pitch range: G1 to D4
24-fret range: G1 to D6

Open strings and root positions

1 of the 7 open strings belong to Bb Phrygian Scale: string 3 F (5). None of those open-string tones is the Bb root, so the root must be fretted on every string.

String 3F5

First root on each string

String 7Fret 3

String 6Fret 8

String 5Fret 3

String 4Fret 10

String 3Fret 5

String 2Fret 1

String 1Fret 8

Low-string pattern

On the lowest G string, the first-octave scale pattern falls at frets 1, 3, 4, 6, 8, 10, and 11, with the Bb root at fret 3. On the highest D string, the first Bb is at fret 8.

Fret 1Abb7

Fret 3Bb1

Fret 4Cbb2

Fret 6Dbb3

Fret 8Eb4

Fret 10F5

Fret 11Gbb6

Practice this tuning-specific layout

Play Bb Phrygian Scale on the low G string at frets 1, 3, 4, 6, 8, 10, and 11, saying each note name and degree aloud.
Build a phrase that lets F on open string 3 ring, then connect it to the nearest Bb root and two other scale tones.
Connect the Bb root positions on strings 7 through 1 at frets 3, 8, 3, 10, 5, 1, and 8, adding the nearest scale tone between each pair of roots.