The product is a textbook titled “Sixteenth Century Counterpoint” by author Roberts, published in 1985 by Prentice-Hall, Inc. It is a hardcover book designed for educational purposes, specifically focusing on the study of counterpoint music from the 16th century. This textbook offers in-depth analysis and instruction on the complexities of counterpoint during this time period, making it a valuable resource for students and music enthusiasts looking to deepen their understanding of historical musical composition techniques.