Today's clarinetist is obligated, by contemporary literature, to play in the altissimo register more often & for longer phrases than ever before. Clarinet pedagogue William R. Higgins has transcribed for the clarinet Thomas Filas' widely accepted studies for flute to help clarinetists to extend their range & improve their proficiency in this register as they must in the chalumeau & clarion registers. A much-needed text for the serious student of the clarinet.