What is a Time Signature?

4
4
Top Number
How many beats are in each measure.
Bottom Number
What kind of note gets one beat. (4 = Quarter Note, 8 = Eighth Note)

Interactive Visualizer

Four quarter notes per measure. The most common time signature in pop, rock, and EDM.
1
2
3
4

Simple vs Compound Time

Simple Time (4/4, 3/4, 2/4)

In simple time, the main beats are divided into two. For example, in 4/4 time, a quarter note (the main beat) can be split into two eighth notes. It has a very solid, straight, square feeling.

Feel: "1 & 2 & 3 & 4 &"

Compound Time (6/8, 9/8, 12/8)

In compound time, the main beats are divided into three. Even though 6/8 has six eighth notes, it is felt as two big beats (dotted quarter notes), each split into three. It provides a rolling, lilting, triplet feel.

Feel: "1 2 3 4 5 6"