5-String Bass tuner – Low Bb
A#-D#-G#-C#-F# · Alternative
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 5-String Bass is to Low Bb tuning (A#-D#-G#-C#-F#). 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 Low Bb tuning
Compared with Standard (BEADG), Low Bb moves 5 strings. Every change is downward, the largest by 1 semitone, so the instrument sits at lower tension than in Standard (BEADG).
| String | Standard (BEADG) | Low Bb | Change |
|---|---|---|---|
| 1 | B0 | A#0 | down 1 semitone |
| 2 | E1 | D#1 | down 1 semitone |
| 3 | A1 | G#1 | down 1 semitone |
| 4 | D2 | C#2 | down 1 semitone |
| 5 | G2 | F#2 | down 1 semitone |
Played open, the strings sound A#-D#-G#-C#-F# – from A#0 at the bottom to F#2 at the top, a span of 1 octave and 8 semitones. Step by step across the neck the intervals are a fourth, a fourth, a fourth, 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 Low Bb tuning comes from
Tuning the five-string down a half step to B♭ follows guitarists who play a half step low. It became common in the metal and hard rock of the 1990s and later.
Other 5-String Bass tunings
Standard
Drop
Chords for this tuning
How do I tune my 5-String Bass to Low Bb?
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#).
Which notes are used in Low Bb tuning?
Low Bb tuning for 5-String Bass uses the notes A#-D#-G#-C#-F#, 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.