I've now given this some more thought and even though I now understand that creating music all comes from your own personal knowledge and experience, I still have some questions. This ability to spontaneously (without explanation) translate your own personal knowledge and experience into tunes and such is something that some composers either don't have or don't have it very strong at all. Despite the fact that these composers do experience emotion from music, they cannot seem to translate that into their own tunes and such and therefore, would require an explanation if they want to have this ability and improve this ability. Of course, it won't actually give them this spontaneous-capable mental ability, but it will give them a taught version of this skill.
For composers who do not have this ability, they will find that when trying to channel their selves into their own tunes and such, that they won't be able to do it. When they find that when coming up with a basis for a new created tune (an emotion or memory), they will find themselves asking "How do I channel that into my own tune? Simply telling it to create a tune on its own does nothing, so what do I do?"
So in this case, without a teaching of this ability, these composers would forever be bound to creating random notes without emotion. They can use their already existing knowledge about music theory and experimentation to try to achieve emotion, but without this mental ability I've just described, I don't think they would hardly get anywhere. So you're saying that these people would fall into the category of "unfortunate composers" and that there is nothing that can be done?
Finally, as for me though, I do have this ability. But I find many times when channeling myself into creating a certain tune that I want to express a certain feeling, instead it will be a completely different tune with a completely different feeling. Therefore, in my honest opinion, a teaching of this music psychology I've been explaining would benefit those composers who either don't have this ability or don't have it very well, and it would also benefit me because my own ability just in terms of translating into a tune that I wish to express an exact feeling might not be very well. So having a taught version of this skill would enable me to translate into the exact feeling that I want.