2nd edition improved and renewed with the new topics of the 2014 exams. This book comes to fill a gap, shifting interest and the learning process from theory to practice. The book consists of exercises that aim at the student to understand the principles that govern the connection of chords, during the harmonious development, through simple movements of the voices. The exercises concern the understanding of the two most important chapters of harmony: the distinction of the foreign sounds of a melody, at the same time with the construction of a melodic skeleton, and the learning of the conversion process. Unlike other textbooks, this paper, written in a simple and understandable way, helps the student to gradually get acquainted with the material of the exams but also with the secrets of harmony.