Bass tuner: Half step down tuning
In Half step down tuning, the open strings of bass, from string 4 to string 1, are D♯1 G♯1 C♯2 F♯2, with concert A (A4) at 440 Hz. The lowest note is D♯1, at 38.89 Hz, and the highest is F♯2, at 92.50 Hz.
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— Hz — cents
Tap “Turn on tuner” and allow the microphone.
Bass tunings
Standard and lower tunings
Other tunings
Half step down tuning
Every string a half step below standard, to play along with guitars tuned to E♭.
Notes: D♯1 G♯1 C♯2 F♯2.
Notes and frequencies of each string
| String | Note | Frequency |
|---|---|---|
| 4 | D♯1 | 38.89 Hz |
| 3 | G♯1 | 51.91 Hz |
| 2 | C♯2 | 69.30 Hz |
| 1 | F♯2 | 92.50 Hz |
How to use it
Tap “Turn on tuner”, allow the microphone and play one open string at a time. The tuner recognises the string and shows whether to tighten it (it is flat) or loosen it (it is sharp). Tap a string name to lock onto it and hear the reference note.
Frequently asked questions
What are the open-string notes of bass in Half step down tuning?
From string 4 to string 1: D♯1 G♯1 C♯2 F♯2.
What is the frequency of the lowest note in this tuning?
It is D♯1, at 38.89 Hz (with concert A at 440 Hz). The highest is F♯2, at 92.50 Hz.
Does the tuner work offline?
Yes. After the first visit (or once installed as an app), the pages open without a connection and pitch detection happens on your device.
What are cents?
A cent is one hundredth of a semitone. Up to 5 cents off is barely audible; the needle turns green in that range.
Can I change the reference A?
Yes: the − and + buttons set A4 anywhere from 430 to 450 Hz, to play along with a piano or a recording tuned differently. Your choice is saved.
Does the microphone record what I play?
No. The sound is analysed on the fly, inside the browser, and is never recorded or sent anywhere.