![A middle `C` string on a piano has a fundamental frequency of `262 Hz`, and the A note has - YouTube A middle `C` string on a piano has a fundamental frequency of `262 Hz`, and the A note has - YouTube](https://i.ytimg.com/vi/sbxL_uRNLDw/maxresdefault.jpg)
A middle `C` string on a piano has a fundamental frequency of `262 Hz`, and the A note has - YouTube
![Note names of musical notes keyboard piano frequencies = octave piano keys number tone tones 88 notes frequency names of all keys on a grand piano standard concert pitch tuning German English Note names of musical notes keyboard piano frequencies = octave piano keys number tone tones 88 notes frequency names of all keys on a grand piano standard concert pitch tuning German English](http://www.sengpielaudio.com/KeyboardAndFrequencies.gif)
Note names of musical notes keyboard piano frequencies = octave piano keys number tone tones 88 notes frequency names of all keys on a grand piano standard concert pitch tuning German English
![A chart to assign a musical note (key frequencies of a piano) to the... | Download Scientific Diagram A chart to assign a musical note (key frequencies of a piano) to the... | Download Scientific Diagram](https://www.researchgate.net/publication/308981887/figure/fig10/AS:415845596581900@1476156724405/A-chart-to-assign-a-musical-note-key-frequencies-of-a-piano-to-the-thicknesses.png)