This textbook on Twentieth-Century Harmony, written by Vincent Persichetti, is an invaluable resource for music enthusiasts and students alike. It covers a range of topics including creative aspects and practice, and is perfect for individuals at any level of proficiency, from beginner to advanced.

With its hardcover format and dimensions of 9.6in x 6.4in x 1in, this book is easily portable and ideal for use in high school, middle school, adult education, vocational school, and even further education. The language used is English, and the book contains 288 pages of valuable information. Whether you're interested in music theory or just looking to expand your knowledge, this textbook is an excellent choice.