Tunewell

Guitar tuning

7-String Drop A Tuner

A1 · E2 · A2 · D3 · G3 · B3 · E4

-50-250+25+50

Your browser will ask for microphone access.

Audio is analyzed locally in your browser — nothing is recorded or uploaded.

About 7-String Drop A tuning

Drop A is to a 7-string what Drop D is to a 6-string: lower the extra string a whole step and one-finger power chords appear on the bottom. It's arguably the definitive modern metal 7-string tuning, from Slipknot to Periphery.

Only the seventh string changes from 7-string standard — tune it down from B1 to A1. Everything above stays in familiar E standard territory, so melodies and chords keep their usual shapes.

7-String Drop A tuning notes & frequencies (A4 = 440 Hz)

StringNoteFrequency
7A155.00 Hz
6E282.41 Hz
5A2110.00 Hz
4D3146.83 Hz
3G3196.00 Hz
2B3246.94 Hz
1E4329.63 Hz

Songs & artists in 7-String Drop A

  • PsychosocialSlipknot

Periphery, Trivium (several eras) and much of modern metalcore.

String gauge advice

A .062–.065 seventh string keeps the low A tight on 25.5"–26.5" scales.

FAQ

What are the notes of 7-String Drop A tuning on guitar?

7-String Drop A tuning is A1, E2, A2, D3, G3, B3, E4 from the lowest string to the highest.

How do I tune my guitar to 7-String Drop A?

Use the tuner above: pluck each string and adjust until the needle centers on the target note shown for that string.

Is this tuner free and private?

Yes — no ads, no signup, and all audio is processed locally in your browser. Nothing is recorded or uploaded.

Embed this tuner

Add the 7-String Drop A tuner to your own site or blog post with an iframe:

<iframe src="https://tunewell.net/embed/guitar/7-string-drop-a" width="420" height="560" style="border:0" title="7-String Drop A Guitar Tuner"></iframe>

Related tunings