This Song Magic is used to create a cage of wind, making it ideal for capturing and immobilizing enemies. It was used by a Reyvateil called Jemi in the events of Spica's Hymmnos Musical to try to capture a man that gave a bag filled with Grathnode Crystals to Spica. From how dead set Jemi's Boss was on retrieving it, to the point in which he even slapped Jemi due to this Song failing in capturing said man, it would be easy to assume that these crystals were stolen from Tenba.