Through music examples, this introductory text illustrates software development in the Python programming language. The authors explain musical and programming concepts in a coordinated way. They interweave musical and computational material, while maintaining a natural, steady increase in computational skills. The book assumes little musical and programming experience and introduces topics through extensive examples and project-based learning tasks. It also includes many concept quiz sections and programming practice exercises. A supplementary website provides files with code for all examples used in the text.