By about 1450, the organs that were being built in Germany and the Netherlands had two or three manuals and pedals. There were stops so that the player could choose which ranks he wanted to sound. The collection of pieces called the "Buxheimer Orgelbuch" (about 1470), is one of the first collections we have of organ music. French organs, too, were developing. In England, organs were quite small. Composers like John Bull, William Byrd and Orlando Gibbons wrote music for chamber organs. In the Netherlands Jan Pieterszoon Sweelinck was a very famous organist and teacher.