Was equal temperament caused by the invention of the piano, or was it inevitable?

Temperament | Definition, Dimensions & Examples

Difference between equal temperament and just intonation

Where Is Middle C? (Various Instruments, Explained Simply)

A Visual Explanation Of Just Intonation

Here's a fun exercise in tuning voices to both just and equal tempered systems. Can you hear the difference? Which do you prefer and why? Let us know in the comments. Arrangements and video by Jean-Baptiste Craipeau | Accent

純正律と平均律の違い ~ just intonation VS equal temperament ～