This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Piano key frequencies" – news · newspapers · books · scholar · JSTOR (December 2019) (Learn how and when to remove this template message) This is a list of the fundamental frequencies in hertz (cycles pe
![Piano key frequencies - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/aefd7d9a3fe4a827a1b88deb80165159522c0195/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F2%2F2e%2FPiano_Frequencies.svg%2F520px-Piano_Frequencies.svg.png)