Define "tempo" in the context of music.

Tempo refers to the speed at which music is played, indicating how fast or slow a piece of music should be performed. It is typically measured in beats per minute (BPM) and can significantly impact the mood and energy of a piece. Different tempos can evoke different feelings and reactions from the listener; for instance, a faster tempo may create excitement and urgency, while a slower tempo can convey calmness or sadness.

In the context of music, tempo is crucial for performers, as it provides a framework for interpreting the piece's rhythmic structure and flow. Understanding tempo allows musicians to maintain consistent timing and synchronization with other players, enhancing the overall coherence of the performance.