quote:
Some evolutionists cant even explain why people help others and frequently cooperate.
But most evolutionists can. Darwin himself proposed how altruism can arise and be selected for.
-
quote:
This area is also probably involved in the understanding and capacity to distinguish a meaningful sentence from nonsense.
So you are close to suggesting a reason for music appreciation yourself: it may not have any survival advantage itself, but may be an unintended consequence of features that were selected for. This, I believe, is what Rrhain is suggesting.
Also, once such a feature does come about, it may be that it can be used as part of cultural rituals and so helps maintain group solidarity. A useful trait for a social species.