About this book, we read by Parichehr Khajeh: "Since the beginning of my study of music and artistic activities, I have always and to a great extent tried to improve the capabilities and position of the Qanun in Iranian instrumental music. The following collection is the result of several years of effort. The selected parts of this book, especially their arrangement and editing, are very much in line with the Kanun in terms of training and technique. "I hope that the students and musicians of this instrument while getting acquainted with the content of the valuable works of instrumental music masters, will increase their abilities and the quality of their playing by accurately performing these pieces. It should be noted that most of the selected pieces in this collection are composed by great and influential composers in the field of music in this land, in addition, most of these works are in the repertoire of instrumental music and have not been heard with the instrument of Qanun. In addition, these pieces are very important in terms of the variety of tunes and the wide variety of reversals, and have a significant impact on students' ability to play, especially to strengthen their left hand. Also, plain training parts, Samani. "Camel Bell" (Zangeh Shotor) is one of the works of Master Abolhassan Saba, arranged, written, and performed with two approaches to different strokes and speeds."