Seiji Yokokawa was born in Tokyo, however his musical studies took him to the conservatoires of Rouen and Paris. His career brough him success as a solo performer and teacher. Yokokawa's expertise has produced the well-informed Scale and Fingerings in all their forms for Clarinet. Containing a helpful fingering chart of all notes on the Clarinet, Scales and Fingerings in all their forms also suggests alternative articulations and rhythms for the 31 pages of scales included.