This is a work by Miles Davis, the trumpeter known as the emperor of modern jazz. It's a session album recorded in 1964, featuring renowned members such as Tony Williams (drums) and Herbie Hancock (piano). It includes five tracks in total, including "So What," "Walkin'," "Seven Steps To Heaven," and "My Funny Valentine." The image is of the domestic (Japanese) CBS label version, model number FCPA 602. There is some dirt on the surface of the case. Operation has not been confirmed. It has been stored at home for a long time.