arildno said:
			
		
	
	
		
		
			Hmm..I'd say the same thing that makes us enjoy bird song, the sound of waterfalls and so on, i.e, that there is a component in our make-up that makes us enjoy our natural, auditive environment.
		
		
	 
I agree, it’s possible to aesthetically appreciate all sorts of sound and absence of sound, not necessarily just man made sound, and to me, there is no difference whether it is called sound or music. Of the schools of thought about why sounds are manipulated or why music as defined as an artificial combination of auditory elements, is made, like, for the expression of the composer’s feelings; hedonism; formalism; knowledge, morally or socially based; or the effect of music on the listener, some of the posts here refer to formalism, and a lot of them mention the effect upon the listener, which was more directly the OP.
I’m particularly interested in the idea that sound may metaphorically, or however, move us. I’ve  come across some articles about neuro/psychological studies of how this may happen. Apparently we are more likely to be aroused by complexity in the things we listen to. I mention this particularly because artificial sounds can be made to be very complex- it can be harder to stumble upon complex, related, combinations of sounds in nature. Although, quite simply, a certain loud volume and a tempo reaching a certain amount of beats per minute, is complexity enough, to be exploited in sales to arouse customers. Also mentioned is along the lines of, that with greater exposure to music the greater ability a brain has to distinguish complexity. Another source of arousal is association, involving memory.
Other claims made are that harmony and discord are registered in different parts of the brain, that the experience of ‘euphoric chills’ when listening is activated by the same reward systems as induced by food and sex, and that music lowers testosterone.
One last point I’ve noted, is that when having analysed a piece, it can lose some of it’s effect.
Some of these points have sources here, some don’t, sorry. I’ve also linked some hopefully appropriate pages, including a couple related to SA’s post about language.
http://www.nsi.edu/index.php?page=xii_music_and_language_perception
http://72.14.235.104/search?q=cache...ropsych+music+brain&hl=en&gl=uk&ct=clnk&cd=40
http://www.sciam.com/article.cfm?chanID=sa006&articleID=0007D716-71A1-1179-AF8683414B7F0000&pageNumber=5&catID=2
http://sciam.com/print_version.cfm?articleID=0007D716-71A1-1179-AF8683414B7F0000
http://www.musicog.ohio-state.edu/Music220/Bloch.lectures/2.Origins.html
http://www.musica.uci.edu/mrn/V4I1S97.html
http://www.apa.org/monitor/julaug03/chords.html