This Book Contains the brief about the Mood and Music, their Features, Study of Data-Mining techniques. This Books contains various mood-model details such as Thayer, Russell Mood model. Data Mining Techniques and Previous concerned papers is also covered in this Book. Interesting and recent developments also covered in this book related to Music-Features. This book presents a Model to classify Music according to mood and Compare this proposed model with other previous models. In result analysis chapter Book shows results-Statistics (for some mood categories are good and for some are satisfactory). An elaborated references are provided at the end of Book. This Book can serve as a manual and text-book for students of Computer Science and Electronics & Communication. It can also be an excellent handbook for researchers in the area of data-mining and Music information retrieval.