“Cicadas were originally humans who, in ancienttimes, allowed the first Muses to enchant them into singing and dancing so long that theystopped eating and sleeping and actually died without noticing it. The Muses rewardedthem with the gift of never needing food or sleep, but to sing from birth to death. The task of the Cicadas is to watch humans to report who honors the Muses and who does not”.

In contrast to the Platonic singers cicadas these are mute. They transmitted signals to each other by vibration: cicadas must find themselves on one branch or blade of grass to "hear" each other, only then the first will be able to feel how the second beats on the surface of the plant.

It is unclear what group of people have turned out into these cicadas according to Plato. However, with the help of special sensors their vibration signals converted into sounds and collected a considerable collection of songs. All these mute cicadas were gone, but their songs are sound.