Guitar tuner: Drop C# tuning
In Drop C# tuning, the open strings of guitar, from string 6 to string 1, are C♯2 G♯2 C♯3 F♯3 A♯3 D♯4, with concert A (A4) at 440 Hz. The lowest note is C♯2, at 69.30 Hz, and the highest is D♯4, at 311.13 Hz.
–
— Hz — cents
Tap “Turn on tuner” and allow the microphone.
Guitar tunings
Standard and lower tunings
Other tunings
Drop C# tuning
Drop C#: tuned down to E♭ standard with the 6th string lowered another whole step. Heavy; used in metal and hardcore.
Notes: C♯2 G♯2 C♯3 F♯3 A♯3 D♯4.
Notes and frequencies of each string
| String | Note | Frequency |
|---|---|---|
| 6 | C♯2 | 69.30 Hz |
| 5 | G♯2 | 103.83 Hz |
| 4 | C♯3 | 138.59 Hz |
| 3 | F♯3 | 185.00 Hz |
| 2 | A♯3 | 233.08 Hz |
| 1 | D♯4 | 311.13 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 guitar in Drop C# tuning?
From string 6 to string 1: C♯2 G♯2 C♯3 F♯3 A♯3 D♯4.
What is the frequency of the lowest note in this tuning?
It is C♯2, at 69.30 Hz (with concert A at 440 Hz). The highest is D♯4, at 311.13 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.