4/4 time is a common time signature in music, indicating that there are four beats in each measure. Each beat is represented by a quarter note, which means that a measure can be filled with four quarter notes or their equivalent in other note values. This time signature is often referred to as "common time" and is widely used in various musical genres. In 4/4 time, the first beat is typically emphasized, creating a strong rhythmic foundation. Musicians often count the beats as "1, 2, 3, 4," making it easy to follow along. This structure helps performers maintain a steady tempo and allows listeners to easily tap their feet or dance along.