The Music of Hogros the Levite
"Hogros b. Levi - We have learned in a Boraitha: When he had to render his voice melodious, he placed his thumb in his mouth, and the index in his mustache. When all his fellow-priests heard his voice, they bent to the ground (from ecstasy)."
Other translations state that he put his thumb under his tounge to create a most beautiful melody.
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