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Guitar tuning
DADGAD
Neither major nor minor — a suspended fourth that never quite resolves.
Electric · 6 in line
Acoustic · 3 + 3
6th
D2
73.4 Hz
5th
A2
110.0 Hz
4th
D3
146.8 Hz
3rd
G3
196.0 Hz
2nd
A3
220.0 Hz
1st
D4
293.7 Hz
Note names won’t tune your guitar.
Knowing the strings should read D A D G A D is the easy half. Landing each frequency — and knowing whether you are nine cents flat or three — is the half that needs an ear or an instrument.
1
Open Dial and play a string
It listens as soon as you play. Nothing to press.
2
Turn each peg until the needle centres
Three strings drop a whole step: both E strings to D, and the B to A.
3
Check the remaining strings
Changing tension on one string shifts the neck slightly. The rest usually need a nudge.
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What DADGAD is for
The Celtic tuning: drones, open strings ringing against melody, and modal shapes that fall under the fingers. Jimmy Page wrote "Kashmir" in it. Fingerstyle players treat it as a second home.
A few chords to try
Dsus4
Open
Gsus4
Barre 5th
Asus4
Barre 7th