‘We forfeit three-fourths of ourselves in order to be like other people.’ –Schopenhauer
The simplest type of human communication is non verbal signals: things like posture, facial expression, gestures, tone of voice. They are in effect contagious: if you are sad, I will feel a little sad, if I then cheer up, you may too. The signals are indications of emotional states and we tend to react to another’s emotional state by a sort of mimicry that puts us in sync with them. We can carry on a type of emotional conversation in this way. Music appears to use this emotional communication – it causes emotions in us without any accompanying semantic messages. It appears to cause that contagion with three aspects: the rhythmic rate, the sound envelope and the timbre of the sound. For example a happy musical message has a fairly fast rhythm, flat loudness envelop with sharp ends, lots of pitch variation and a simple timbre with few harmonics. Language seems to use the same system for emotion, or at least some emotion. The same rhythm, sound envelope and timbre is used in the delivery of oral language and it carries the same emotional signals. Whether it is music or language, this sound specification cuts right past the semantic and cognitive processes and goes straight to the emotional ones. Language seems to share these emotional signals with music but not the semantic meaning that language contains.
