User blog comment:Themguyman/The effect of music on play/@comment-5791947-20130106061744

Here's the thing. Music can change emotion, and emotion changes your performance.

It's not just limited to playing just LoL. On a pain test, people can endure very cold or very hot water much longer when listening to their favourite music, and the exact opposite on their hated music.

The psychological effect is noticeable.