M'kay, gotcha. Tahaan, being the impatient little thing he is, will most like get working on if not complete silence in his next post.

Answer: I'd say once sound exists. . .Being what they are, Tahaan and Aysus will be able to make sounds, but since the implement needed for Voice does not yet exist, they can not speak. However once that is made, all things said implement, like a humanoid voice box, can do as we know it, it will be able to do. Once sound is made, using their masses I'd say out guys can make sounds with them, but until they make something to speak with, they can't talk. But once talking is made, what can talk, can sing. Understand? At least that's my thought on the matter. Which is why I see animals as being made first, the ones that make sounds without voices, like crickets and bees, and then simple voices like birds and crocks(Or stuff like them :P) Then on to the things with more complex vocal patterns, like Raptors and Cats :P