7-String Guitar tuner – Standard A#
A#-D#-G#-C#-F#-A#-D# · Standard
Press “Start tuner” – the browser will ask for microphone access. Sound is analysed on this device and never uploaded.
This free online tuner listens through your microphone and shows how close each string of your 7-String Guitar is to Standard A# tuning (A#-D#-G#-C#-F#-A#-D#). Play a string, watch the needle, and turn the peg until the meter glows green. If you prefer tuning by ear, tap any string card to hear its reference tone.
About Standard A# tuning
Compared with Standard B, Standard A# moves 7 strings. Every change is downward, the largest by 1 semitone, so the instrument sits at lower tension than in Standard B.
| String | Standard B | Standard A# | Change |
|---|---|---|---|
| 1 | B1 | A#1 | down 1 semitone |
| 2 | E2 | D#2 | down 1 semitone |
| 3 | A2 | G#2 | down 1 semitone |
| 4 | D3 | C#3 | down 1 semitone |
| 5 | G3 | F#3 | down 1 semitone |
| 6 | B3 | A#3 | down 1 semitone |
| 7 | E4 | D#4 | down 1 semitone |
Played open, the strings sound A#-D#-G#-C#-F#-A#-D# – from A#1 at the bottom to D#4 at the top, a span of 2 octaves and 5 semitones. Step by step across the neck the intervals are a fourth, a fourth, a fourth, a fourth, a major third, a fourth, and that is what decides how chord shapes fall under the hand.
The drop is small enough that a standard set handles it. If the lowest string starts to rattle against the frets, one step up in gauge fixes it.
History
Where the Standard A# tuning comes from
Tuning a seven-string down a half step to A# follows the same habit as E♭ tuning on six-string guitars: slacker strings for bends and a heavier sound. It became common in metal from the late 1990s; no particular inventor is known.
Other 7-String Guitar tunings
Chords for this tuning
How do I tune my 7-String Guitar to Standard A#?
Allow microphone access, pluck a string, and the tuner will detect it automatically. The needle shows whether the string is flat or sharp – adjust until the reading is within ±5 cents (A#-D#-G#-C#-F#-A#-D#).
Which notes are used in Standard A# tuning?
Standard A# tuning for 7-String Guitar uses the notes A#-D#-G#-C#-F#-A#-D#, listed from the lowest string to the highest.
Can I tune without a microphone?
Yes. Every string card plays a reference tone – tap it and match your string to the sound by ear.