The work of the composer is similar to that of the craftsman. A musical work is "built" based on the selection and combination of different materials, based on listening and interpretation. Composition is both an activity and a way of thinking. From these ideas, this book offers a material in which, step by step, explores the dimensions of music and discover the most suitable procedures to build a piece of music. The text is accompanied by a compact disc that includes several examples recorded especially to illustrate the different techniques and compositional procedures presented in each of the chapters.