42 tunings with step-by-step changes from standard, a mic tuner, reference tones, and a custom tuning builder.
C standard tuning is C F B♭ E♭ G C, from the lowest (6th) string to the highest (1st). Compared with standard tuning, 6 strings change.
Two whole tones below standard, popular in metal and stoner rock. Use a heavier string set so the strings do not flop.
| String | Note | Frequency (A = 440 Hz) | Change |
|---|---|---|---|
| 1st (highest) | C4 | 261.63 Hz | -4 from E |
| 2nd | G3 | 196.00 Hz | -4 from B |
| 3rd | E♭3 | 155.56 Hz | -4 from G |
| 4th | B♭2 | 116.54 Hz | -4 from D |
| 5th | F2 | 87.31 Hz | -4 from A |
| 6th (lowest) | C2 | 65.41 Hz | -4 from E |
Every string is 4 semitones lower than standard, so every chord, scale and riff you know works with the same fingers and sounds 4 semitones lower. An E shape sounds as C, A as F, D as B♭, G as E♭.
Singers often find a song easier a little lower, and the looser strings make bends and vibrato easier. Very low tunings also give a heavier, darker sound.
Starting from standard tuning: 6th string down 4 semitones to C; 5th string down 4 semitones to F; 4th string down 4 semitones to Bb; 3rd string down 4 semitones to Eb; 2nd string down 4 semitones to G; 1st string down 4 semitones to C. Use the tuner at the top of this page for each changed string.
From the lowest string to the highest: C2, F2, Bb2, Eb3, G3, C4 (C F Bb Eb G C).
Reverse the changes: 6th string up 4 semitones to E; 5th string up 4 semitones to A; 4th string up 4 semitones to D; 3rd string up 4 semitones to G; 2nd string up 4 semitones to B; 1st string up 4 semitones to E.
Tuning down a lot makes strings slack, which can buzz. If it does, use a heavier string set or play a little lighter.