How to tune a 5-string bass

Start with the right five notes

A common five-string bass setup adds a low B below the familiar E, A, D, and G. Read that order from the lowest-pitched string to the highest. Before turning a peg, confirm that your instrument is strung for low B: a five-string bass can also be set up with a high C instead.

Give the tuner one clear note

Put your phone near the bass where it can hear the instrument, and pause music or conversation nearby. If you use an amplifier, keep the sound clean and moderate. A distorted or heavily processed sound makes a simple tuning task harder than it needs to be.

Rest your spare fingers on the strings you are not tuning. Pluck an open string and let it ring. Avoid fretting a note, brushing another string, or repeatedly striking so hard that the reading jumps. Wait for a steady reading rather than chasing the first instant of the attack.

Tune in small steps

1. Select standard five-string tuning. Check the note you intend to reach before adjusting.
2. Start with the open B string. Confirm that you are moving the peg belonging to that string.
3. If the pitch is below the target, raise it a little. If it is above, lower it a little. Pluck again after each small change.
4. Continue through E, A, D, and G with the same quiet, controlled approach.
5. Make a second pass. Changing one string’s tension can slightly affect the rest.

The tuner gives you feedback; it cannot turn the peg. Stop if the string feels unexpectedly tight or the note is far from the expected register. Check the string, tuning, and peg instead of trying to force the display to agree.

When low B will not settle

First improve the signal: mute the other four strings, move the phone closer, and try a gentler pluck. Give a low note a moment to develop. If the display jumps to another B, remember that a note letter alone does not identify its octave.

A string that feels very slack, buzzes heavily, or sounds much higher than expected deserves a setup check. Compare it with a known low-B reference or another tuner before making a large adjustment. The correct tuning depends on the instrument and strings, not just on a letter appearing on screen.

Finish with a musical check

Play a short line across all five strings. Listen for notes that seem out of place, then check those open strings again. If open strings tune correctly but fretted notes consistently sound off, that can be an intonation or setup issue rather than something a different tuner setting will solve.

A quick check before each session is easier than a big correction halfway through a song. Keep the same reference pitch as your band or backing track and make tuning part of your practice routine.