Music has to do with sounds, so we need to find them somewhere and it is preferred to find musical ones. You have two sources for sounds: noises, which always tell you something - a door cracking, a dog barking, the thunder, the storm; and then you have instruments. An instrument tells you, 'la-la-la-la.' Music has to find a passage between noises and instruments. It has to escape. It has to find a compromise and an evasion at the same time; something that would not be dramatic because that has no interest to us, but something that would be more interesting than sounds like Do-Re-Mi-Fa...