Simple and Compund Meters
In simple meter, the beats divide into even divisions of two. The simple meter includes meter signatures such as 2/4, 3/4, and 4/4. Any time signatures with 2, 3, or 4 as the top number (such as 2/2, 2/8, 3/2, 3/8, 4/2, and 4/8) are also in simple meter, while compound meters (such as 9/8 and 12/8) divide into three notes.