Equal Temperament is a stretch-tuning reference for the digital / keyboard. StroboPro can load it as a target curve for a tuning pass with less than 0.1 cent display resolution.
Open the free Equal Temperament tunerThis is an 88-key stretch-tuning reference curve: the cents offset each key sits at relative to equal temperament, rising sharp in the treble and flat in the bass (the Railsback curve). Sample A-octaves:
| Note | Hz | Cents |
|---|---|---|
| A0 | 27.50 | |
| A1 | 55.00 | |
| A2 | 110.0 | |
| A3 | 220.0 | |
| A4 | 440.0 | |
| A5 | 880.0 | |
| A6 | 1760 | |
| A7 | 3520 |
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.