Between 1861 and 1892, Alexandre Guilmant composed 66 organ works in a wide variety of styles and published them in a succession of 18 books, each with its own opus number and bearing the overall title Pièces dans différents styles. For the first time, all of these works are being recorded on period organs by the fine and popular Dutch organist, Herman van Vliet (whose famous recordings of the complete Widor organ works were selected some years ago as the best available by a reviewer in The American Organist). The works include some of Guilmant’s most popular pieces and will appear in five volumes in the order of their composition. Added to the entire Pièces dans différents styles will be the 18 Pièces Novelles, op. 90, composed after 1890.