![Fermat's Library on Twitter: "The reason why the shape of a lot of pianos looks like an exponential is because for waves on a string, doubling length means reducing a music pitch Fermat's Library on Twitter: "The reason why the shape of a lot of pianos looks like an exponential is because for waves on a string, doubling length means reducing a music pitch](https://pbs.twimg.com/media/EHFQaTzXYAIsSaB.jpg:large)
Fermat's Library on Twitter: "The reason why the shape of a lot of pianos looks like an exponential is because for waves on a string, doubling length means reducing a music pitch
![The Structure of the Piano:Design of the Strings Enriches the Sound - Musical Instrument Guide - Yamaha Corporation The Structure of the Piano:Design of the Strings Enriches the Sound - Musical Instrument Guide - Yamaha Corporation](http://www.yamaha.com/en/musical_instrument_guide/common/images/piano/mechanism_main.jpg)
The Structure of the Piano:Design of the Strings Enriches the Sound - Musical Instrument Guide - Yamaha Corporation
![The Structure of the Piano:Design of the Strings Enriches the Sound - Musical Instrument Guide - Yamaha Corporation The Structure of the Piano:Design of the Strings Enriches the Sound - Musical Instrument Guide - Yamaha Corporation](https://www.yamaha.com/en/musical_instrument_guide/common/images/piano/mechanism_p04_02.jpg)