Ironically, it's more of a violin rather than a cello

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The Cricello is a medium sized cricket native to Autivale Island, most abundant on the mountain.

It shows to have psychological effects on all life forms with complex cerebral activity: Whenever it's threatened, it rubs it's wings, which has similar compositions of a violin, and produces a lullaby, which temporary distracts the attacker, giving it time to hop away.

The lullaby differs from everyone. The cricket is described to produce a specific tune that it's attacker found the most emotional, and everyone hears a different songs. A.K.A. the cricket always play the same lullaby but it's different to every body's ear.

Assessment: It's fine to cry once a while!