The term CATS' SOUNDS can be summarized by the crossword solution of JAZZ, which is a four-letter word. JAZZ is a genre of music that originated in the late 19th and early 20th centuries in African American communities in the Southern United States. It is characterized by a complex mix of musical styles, including blues, ragtime, gospel, and swing. JAZZ is often associated with CATS because of its improvisational nature and its ability to capture the moods and emotions of CATS. CATS' sounds are often compared to JAZZ music due to its unique sound and its ability to capture the moods and emotions of CATS.