Uploaded July 2020 | Updated September 2026, 2 weeks ago
The tritone is also known as “the devil in music” because it’s so dissonant. Host Eugenia Cheng explains how Bach used it, and math, to achieve his goal of composing music in every key.
The tritone is also known as “the devil in music” because it’s so dissonant. Host Eugenia Cheng explains how Bach used it, and math, to achieve his goal of composing music in every key.






![Musical Machines [Math in Music Ep. 7]
Music can be regarded as a function of time, and we can express transformations of music as related functions. Host Eugenia Cheng demonstrates how she used transformations to create her own “musical machine.” Musical Machines [Math in Music Ep. 7]](https://i.ytimg.com/vi/isusqSNFoVc/mqdefault.jpg)



