I've experienced the same thing with elementary age voices. When you combine a voice that is slightly 'reedy' (for want of a better description) with one that is more 'flutelike' (again, for want of a better description) the amount of tone almost doubles and enriches the entire group. Dan Hallett "the sound sort of "expanded" or "bloomed" as the note was held. After figuring out this was what you meant, I went back to the totally still, dead-on unisons. There was a slight difference, but a difference nonetheless. From a musical perspective, the unisons were better that tiny bit off. There was more life.">> John "bloomed" is a very appropiate term here I think. I am not well versed enough in the technical side of tuning/tone generation to be able to give technical reasons for this.
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