Music can alter affect.
Certain sounds can produce feelings of joy and celebration, and even bring people out of depression. The Pulitzer-prize winning author, William Styron, wrote a book several years ago which recorded his battle with severe depression. Caught in the pit of despair, and about to take his life, he decided to watch a play on TV, his wife had gone to bed. This musical piece shattered the darkness and allowed him to begin the long road toward healing. It is also true that other sounds can lead us into depression.