How to Tune Bass Guitar

There's a lovely moment when a bass is properly in tune — the low notes stop fighting each other and the whole bass seems to open up and breathe. Getting there is genuinely easy once you know how, and it's the single best habit you can build as a bass player. Tune up every time you pick your bass up, and everything you play will sound better for it. Here's how I do it, and how you can too.

What the strings should be

A standard four-string bass is tuned, from the thickest, lowest string to the thinnest, highest:

• E – A – D – G

If you play a five- or six-string, you simply add strings around that core:

• Five-string: B – E – A – D – G
• Six-string: B – E – A – D – G – C

Those four middle notes are the same as the lowest four strings of a guitar, just an octave lower — which is a nice thing to know if you're crossing over from six strings.

The easy way: use a tuner

Honestly, the most reliable method is a chromatic tuner — a clip-on, a pedal, or even a phone app will do the job on a bass. Here's the routine:

1. Turn your bass volume up if you're plugged in, and sit or stand as you normally play — your position can nudge the pitch slightly.
2. Pluck one string at a time, near the middle, with a steady, gentle touch. Let it ring rather than hitting it again and again.
3. Watch the tuner and turn the machine head slowly until it reads the right note, dead centre.
4. Work through all the strings: E, A, D, G (plus B and C if you have them).
5. Then go round once more — tuning one string subtly shifts the tension on the neck and can move the others.

One small tip that makes a real difference: if a string is flat, drop it slightly below the note and then bring it up to pitch. Tuning upward into the note helps everything settle and stay put.

No tuner? Tune it to itself

If you're caught without a tuner, you can tune the bass to itself using the fact that each string is a perfect fourth above the one below it:

• Play the 5th fret of the E string — that's an A — and match the open A string to it.
• Play the 5th fret of the A string and match the open D.
• Play the 5th fret of the D string and match the open G.

It's a brilliant trick for a quick fix, but remember: it only makes the strings agree with each other. If your reference string was off to begin with, the whole bass will be in tune with itself but flat or sharp of concert pitch. Get one string to a known reference first if you can.

The harmonics method

Players who like a really clean comparison tone often tune with harmonics: sound the 7th-fret harmonic on the lower string against the 5th-fret harmonic on the string above (E against A, then A against D, then D against G). Harmonics ring clearly and sidestep the pitch changes you get from pressing a fret too hard — they just need a quiet room and a little practice.

A word about brand-new strings

If you've just restrung, don't be surprised when the tuning won't sit still. Fresh strings need stretching in — gently tug each one, retune, and repeat a few times until the pitch holds. Ten minutes of this at the start saves you a whole gig of drifting tuning.

Going lower: alternate tunings

Once you're comfortable, you might want to drop things down for heavier or moodier music:

• Drop D: D–A–D–G — just the lowest string down a whole step for extra low-end punch.
• E-flat standard: everything down a semitone, a favourite for a slightly darker, slacker feel.
• D standard: everything down a whole step (D–G–C–F).

Big tuning changes alter the string tension, which can affect the neck, the action and the intonation — so if you live in a lower tuning, it's worth fitting a heavier string gauge and getting the bass set up for it.

Tuning isn't the same as intonation

Here's something that trips a lot of players up. Your open strings can be perfectly in tune while notes up the neck still sound off — that's an intonation issue, not a tuning one. To check: tune an open string, then play the note at the 12th fret and compare it with the 12th-fret harmonic. If the fretted note is sharp, the bridge saddle needs to move back a touch; if it's flat, it moves forward. Small adjustments, retune, retest — or hand it to a good tech if you'd rather not fiddle with the bridge.

Little mistakes to sidestep

• Tuning to the wrong octave (easy on those low strings — let the note settle so the tuner reads the fundamental).
• Letting other strings ring while you tune one.
• Plucking too hard, which pushes the pitch sharp for a moment.
• Forgetting to go back round after adjusting a string.
• Assuming in-tune open strings mean the intonation is fine too.

Make it a habit

None of this takes long — a minute with a tuner before you play, a quick round of harmonics if you're feeling fancy. Do it every time and it becomes second nature. A well-tuned bass is the foundation everything else sits on, and once you've felt the difference it makes, you won't want to play any other way.

Frequently Asked Questions