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. For all aspiring clarinetists, Yokokawa's Scales and Fingerings in all their forms is an essential study book to develop technique to a high standard.