Sawmill (GDGD) Tuning
Tune your mandolin to Sawmill (GDGD) — G3, D4, G4, D5
About Sawmill (GDGD) Tuning
Sawmill tuning GDGD (G3-D4-G4-D5) creates two pairs of octaves — G strings and D strings — tuned one octave apart. This powerful, symmetrical tuning produces a G5 power chord on open strings, and its raw, droning quality defines much of the old-time Appalachian mandolin sound.
In old-time string band music, the mandolin often serves as a rhythm and chop instrument rather than a lead. Sawmill tuning excels at this role — the G-D power chord provides a driving rhythmic foundation that locks in with the fiddle and banjo. The absence of a third (no B note) gives the sound a primal, open quality.
The symmetry of Sawmill makes it intuitive once you adjust to the new layout. Every pattern on the G-D pair repeats exactly on the upper G-D pair, one octave higher. This makes octave doubling and unison lines between pairs easy and natural.
String Notes
Recommended Strings
The A course drops to G4 and the E course drops to D5, both significant reductions from standard pitch. Medium gauge strings maintain better tension and response at these lower pitches. If strings feel too slack, move to a heavier set.
How to Tune to Sawmill (GDGD)
- 1.Start from standard GDAE. Two courses change.
- 2.Lower the A course from A4 down to G4 (392 Hz). It should match the lowest course (G3) one octave higher.
- 3.Lower the E course from E5 down to D5 (587.33 Hz). It should match the D course (D4) one octave higher.
- 4.The G and D courses stay at standard pitch.
- 5.Strum open — you should hear a powerful G5 power chord with octave doublings. The sound is raw, open, and driving.
Common Chords in Sawmill (GDGD)
G5 (open)
All courses open. A pure G power chord with octave doublings — raw and powerful.
C Power Chord
Barre shapes create power chords at other positions. At fret 5 you get a C5, at fret 7 a D5.
D Power Chord
Barre at the 7th fret or use the open D courses. The V chord against the G root.
Rhythmic Chop
The open G5 power chord is perfect for the rhythmic 'chop' technique that drives old-time mandolin accompaniment.