The accordion is a free-reed musical instrument powered by a flow of air generated by the "pull" and "push" of the bellows. Handling the bellows and attacking the notes on the keyboards replaces the blow of the tongue and the breath of a wind instrument (flute, saxophone, oboe, trumpet, etc.). Regular practice of the exercises in this book will enable you to make significant progress in handling the accordion bellows and attacking notes on the vocal (right hand) and accompaniment (left hand) keyboards. The work is divided into four parts. The first part deals with articulations and phrasing: how to attack sounds, slurs, piqués, lourées and accentuations. The second part deals with the color and flexibility of sounds in all registers: bass, midrange and treble. The third deals with the fullness of sound. The booklet concludes with a fourth section offering applications for mastering interpretation. The tuning aspect of the accompaniment keyboard is also covered. These exercises will enable the accordionist to make great progress in interpreting the works.