This book, along with the second volume – The rhythm by Constantin Rîpă, represents one of the fundamental works in the Music Theory domain from Romania and not only. Given its complex specific conception, The superior music theory- Tonal systems, it is used mostly in the academic environment. Its structure is based on a historical and stylistic approach, from the tonal systems of the primitive music, and the tonal systems of the ancient peoples, up to some of the most evolved sonoristic concepts, such as the modes with limited transposition of Olivier Messiaen, The neomodal conception of George Enescu an so on. Its area of use is very wide, by students (from beginner up to advanced level), teachers, musicologists and many other musician categories.