The frequency used is BETA with a musical accompaniment, which will put you in a state To fully conjure Earl Andromalius.
The Audio is in MP3 format and is 20 minutes in duration; Included in this download are instructions on how to use this audio.
The Seventy-second Spirit in Order is named Andromalius. He is an Earl, Great and Mighty, appearing in the Form of a Man holding a Great Serpent in his Hand. His Office is to bring back both a Thief, and the Goods which be stolen; and to discover all Wickedness, and Underhand Dealing; and to punish all Thieves and other Wicked People and also to discover Treasures that be Hid. He ruleth over 36 Legions of Spirits