Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
30:21And the children of Israel, that were found at Jerusalem, kept the feast of unleavened bread seven days with great joy, praising the Lord every day, the Levites also, and the priests, with instruments that agreed to their office.
Original from Project Gutenberg - Massive cleanup of OCR problems and editing done locally.