Tune your guitar to Open A (6-string) with a strobe display that resolves to less than 0.1 cent. The table below lists every target string; click to launch the tuner already set to Open A.
Open the free Open A tuner| # | Note | Hz |
|---|---|---|
| 1 | D2 | 73.42 |
| 2 | A2 | 110.0 |
| 3 | C#3 | 138.6 |
| 4 | A3 | 220.0 |
| 5 | C#4 | 277.2 |
| 6 | E4 | 329.6 |
A needle answers "what is the average pitch right now?" A multi-harmonic strobe adds an extra layer to the tuning visualization by showing several harmonics at once, so you can fine-tune more confidently to fractions of a cent.
Published by Applicaudia, the maker of StroboPro. The less than 0.1 cent figure describes the tuner's display resolution, not a lab-measured accuracy specification. Frequency values are equal-temperament approximations.