PURPOSES AND OBJECTIVES OF THE 20 & 20 SERIES
The 20 & 20 Series comprises several volumes that include 20 lessons and 20 exercises, referring to different aspects of music science.
Our workbooks are intended to bring or expand the knowledge of musical art in a dynamic way, without abundance of texts either in the lessons, exercises or practical work that allow us through excellent graphics, to reaffirm these concepts.
More than 30 years of experience as a teacher allow me to ensure that in Series 20 & 20 you will find the necessary elements to further develop musical knowledge as a means of expression.
Nestor Crespo
Director Serie 20 & 20