Primarily it is rhythm and pace. The attribute that connects you emotionally to the music… typically it makes your foot tap… or get emotionally consumed by the music.
it is really easy to get side tracked into hearing more details or more slam and bass, these can lead you away from really natural and musical sound. It took me nearly forty years to be able to immediately sense rhythm and pace. Tonal balance, detail etc are much easier to sense and in many ways much less important.