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Tuner
Open D Tuning (D A D F# A D)

Open D Tuning (D A D F# A D) Guitar Tuner

Open D creates rich major resonance and is useful for open-string melodies and slide phrases.

Target Notes

D2 - A2 - D3 - F#3 - A3 - D4

Open live tuner

Best Use Cases

Acoustic slide
Drone-style melodies
Open-string chord writing

How to Tune Quickly

Open the live tuner and allow microphone access.
Pluck one open string at a time and center the needle.
Use reference tones if you prefer tuning by ear.
Repeat all six strings and re-check the first string once more.