the exercises location most common problems which can hamper a performance abilities of a student. These range from either "crossing of the thumb," to quadruple- & triple-trills. A exercises come intended to become severally mastered then played consecutively inside the sections it is positioned in. Apart from either increasing technical indicator abilities of a student, after played around groups at higher speeds, the exercises besides will help to increase endurance.

ja:シャルル＝ルイ・ハノン