The Albert system clarinet, developed by Eugène Albert (1816–1890,) was a refinement of the mechanism of the famous Müller 13-keyed clarinet of 1810. Eugene and his sons, Jean-Baptiste (J.B.) (1845–1918,) Jacques and E.J. of Brussels, Belgium, manufactured and sold the Albert clarinet from the mid-1800s through the early 1900s. Eventually this system would fall out of use, as players favored the Boehm system that most clarinetists use today. Even so, the J.B. Albert 24 Varied Scales and Exercises remains the perfect clarinet scale book for the development of technical expertise, excellent intonation and beauty of sound. This newly engraved edition with alterations by Julie DeRoche offers today's clarinet students rhythmic accuracy, smoothness of tone, consistent pitch, and ever increasing speed.