![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
![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/Root-Ratios.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 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
![Keyboard Notes By Frequency (Part 2) | Music Technology | News, Multimedia Production and Computer Music Guide Keyboard Notes By Frequency (Part 2) | Music Technology | News, Multimedia Production and Computer Music Guide](http://podcomplex.com/images/podcomplex-frequency-overview-chart.gif)