Emotion is a big part of music appreciation, too - and poetry, literature, etc. Some art exhilarates, some brings us to tears, some makes us laugh. Our reactions are personal and many times cannot be duplicated.
So true. I can listen to an old song on the radio and have it bring memories of a good time long past, another can hear the same song and have a completely different memory brought back by it. Nevertheless, the song has been effective, it has brought out something deep within the listener. True, it is not the same in all listeners, however, even thought what it brings out is subjective, music is nevertheless part of the objective reality we live in and cannot be denied a part in it as materialists try to do. Just because it cannot be analyzed, measured, and dissected by materialist methods does not mean it is not part of reality. In fact, ask any teenager and they will tell you it is perhaps one of the biggest parts of reality for them. It is not music, or art that are deficient because materialism cannot account for them. It is materialism which is deficient for not knowing what to do with it.
I doubt if many of the artists realized, in their lifetimes, how many generations would be emotionally moved by their effort!
I think some thought so, but some would also be surprised. However, the point is even broader than that - art can and often does transcend the physical dimensions of space and time, it is therefore a reality which exists way beyond the physical realm but which must be included in any theory which seeks to explain reality.