A type of Regal, a reed org. which came into use in the 15th cent. and remained popular into the 17th. In appearance it was a small, portable, single‐manual org. of small compass, but the pipes (all short) were at first all reed‐pipes, the reeds being of that type called ‘beating reeds’ (see reed): later flue pipes were sometimes added. The Bible Regal folded in two like a book.