How to tune a 5-string banjo by ear
A five-string banjo is a little different from most string instruments because the short 5th string starts partway up the neck. It is usually tuned higher than the long strings and works as a drone string.
In standard Open G tuning, the notes are:
G4 – D3 – G3 – B3 – D4
The short 5th string is the high G4. The four long strings then run from the low D3 up to D4.
Use the reference tones in the tuner above one string at a time. Play the reference note, pluck the matching banjo string and adjust the tuning peg until the two pitches come together.
When the pitches are close, listen for a slow pulsing or “beating” between them. The slower the beat becomes, the closer you are to the correct pitch.
Open G – the standard 5-string banjo tuning
| String | Note | Frequency |
|---|---|---|
| 5th string – short drone | G4 | 392.00 Hz |
| 4th string | D3 | 146.83 Hz |
| 3rd string | G3 | 196.00 Hz |
| 2nd string | B3 | 246.94 Hz |
| 1st string | D4 | 293.66 Hz |
These frequencies assume the common reference pitch A4 = 440 Hz.
Why is the 5th banjo string different?
The short 5th string is one of the things that gives a five-string banjo its characteristic sound.
Instead of continuing all the way to the nut like the other four strings, it starts higher up the neck. In Open G tuning it is tuned to G4, higher than the other open strings.
In many picking and clawhammer patterns this string acts as a repeating drone. That high open note is a large part of the familiar rhythmic shimmer of a five-string banjo.
When using TuneStrings, tune the short 5th string separately just like the others. Do not treat the first note in the tuner as the lowest string — it is the short high drone string.
Open G tuning
G4 – D3 – G3 – B3 – D4
Open G is the most common tuning for modern five-string banjo and is especially associated with bluegrass playing.
Strumming the four long open strings already gives you the notes of a G major chord, while the high G drone reinforces the key.
If you are learning five-string banjo, this is normally the best tuning to start with because so much teaching material and repertoire assumes Open G.
C tuning – Drop C
G4 – C3 – G3 – B3 – D4
For this tuning, the 4th string is lowered from D3 to C3 while the other strings stay as they are in Open G.
That single change gives the banjo a deeper bass note and opens up different chord shapes and harmonic possibilities.
This tuning is often called Drop C or simply C tuning.
Double C tuning
G4 – C3 – G3 – C4 – D4
Double C changes both the 4th and 2nd strings compared with Open G. It is particularly useful in old-time and clawhammer playing.
The two C notes create a very open, resonant sound that works naturally for tunes centred around C. Players also frequently capo this tuning to reach other keys while keeping the same fingering relationships.
Which string should you tune first?
There is no rule that you must always start with the same string, but the 3rd string G3 is a useful reference in Open G because it sits comfortably in the middle of the instrument’s range.
Once one string is accurate, work through the others and finish with the short 5th string. Then check everything again.
Banjo bridges are not fixed permanently to the head, so changing string tension can sometimes affect the overall setup slightly. A final check is always worthwhile.
Learning to hear when the banjo is in tune
Tuning by ear is mostly about learning to recognise small differences in pitch. You do not need perfect pitch.
What matters here is relative pitch: hearing whether your banjo string is higher or lower than the reference tone and gradually bringing them together.
Do this regularly and it becomes surprisingly intuitive. After a while you may notice that you start correcting a slightly flat or sharp string before you consciously think about it.
Old strings can make tuning harder
A worn banjo string can still produce a note, but the sound may become duller and less stable. That can make matching a reference pitch more difficult.
If one string repeatedly refuses to settle while the others behave normally, inspect the string before blaming the tuner or the tuning peg.
How often strings need changing depends on how much you play, your picking style and the type of strings you use. There is no need to replace them according to a fixed calendar if they still sound and tune well.
A few practical banjo tuning tips
Pluck with a normal, moderate attack. Hitting the string very hard can make the pitch start slightly sharp before it settles.
Make small adjustments near the target pitch. Banjo tuning machines can move the pitch more than expected with a surprisingly small turn.
If possible, approach the final pitch from slightly below. This helps keep tension stable in the tuner and around the nut.
After tuning, play a few open chords or a familiar roll. Sometimes an interval that feels slightly wrong is easier to notice in actual playing than while listening to one isolated string.
Frequently asked questions
What is standard 5-string banjo tuning?
The most common standard tuning is Open G: G4–D3–G3–B3–D4.
Why is the 5th banjo string so short?
The short 5th string is primarily used as a high drone string. In Open G it is tuned to G4.
What is Double C banjo tuning?
Double C tuning is G4–C3–G3–C4–D4. It is widely used for old-time and clawhammer banjo.
What is Drop C tuning on banjo?
Drop C lowers the 4th string of Open G from D3 to C3, giving G4–C3–G3–B3–D4.
Do I need perfect pitch to tune a banjo by ear?
No. You only need to compare your string with a reference tone and hear whether it is higher or lower. This kind of relative pitch improves with practice.
Why does my banjo go out of tune after I tune it?
New strings can stretch, old strings can become unstable, tuning machines can slip and changes in string tension can affect the instrument slightly. Tune all five strings, play for a moment and then check them again.