Share: Facebook pinterest Instagram twitter YouTube Unseen Power Petra Release Date: February 04, 1992 Ordering InformationNot sure what you're looking for? Check our product glossary Order ID Description Price Notes Format Qty 080689010897 Vocal Folio $9.95 No longer avail Physical Enter the number of copies you need for your choir. (For downloadable products, enter the number of copies you will physically make and/or distribute electronically, including via email.) Click here for more information. Minimum Qty Add to cart