The 9/8 time signature is a compound time signature that indicates there are nine beats in each measure, with each beat represented by an eighth note. It is often grouped into three sets of three eighth notes, creating a lilting, flowing rhythm. This time signature is commonly found in various musical styles, including folk, classical, and jazz. In 9/8, the strong beats typically fall on the first beat of each group of three, giving the music a distinctive feel. Musicians often use this time signature to create lively and dance-like pieces, as it allows for intricate rhythmic patterns and syncopation.