What is the significance of a music beats per minute chart in determining the tempo and energy level of a song?

A music beats per minute chart is important for determining the tempo and energy level of a song because it provides a numerical value that indicates how fast or slow the music is. This helps musicians, producers, and listeners understand the overall feel and mood of a song before even listening to it. The beats per minute can influence the emotional impact of the music and how it is perceived by the audience.