“Laskem laulda kui on rõõmus meel, laskem tantsida ning hüppab sees, tundes kuidas laulu isu sees aina keereldes keereldes lendu läeb.”

Google translation, I don't know how exact it is:

Let's sing when there is a happy mind, let's dance and jump inside, feeling how the flight goes by spinning inside the appetite of the song.

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Anyway, about singing and swirling.