Now there's one more thing: some things might seem to have a very sure representation in music. For example: if we hear some trumpets or other brass instruments playing a march-like music, we will automatically think of military ambience, or knights, royal families entrance... well, things like that. Now, the thing is that those instruments played in that specific manner DON'T MEAN these things. This idea has been constructed in us for long periods of time. Long time ago, for some reason, brass instruments had been used in such occasions, making people associate the sound to the ambience. But I repeat: this isn't a "natural" thing... it has been constructed.
Ok, so I propose a challenge: pick a "random" word from the dictionary and "translate" it into music. Don't say ANYTHING about it, don't even give a title to it. Then let people try to guess which word it is.