As a Buddhist practicioner with a tibetan master, I suppose it´s a sample from tibetan monks singing undertone. Jordan Rudess came up with it anyway, and it fits well to the lyrics, if you read them.
But anyway, even if it´s not tibetan, it is definitely undertone singing (I am also ...
@pepe.
toma todo con humor, riete y todo sera bien.
a mi me dices cabeza cuadrada por haber criticado PROFESIONALMENTe como musico, eso se me hace falta de humor y xenofobo.
toma la vida con ligereza, y todo va bien HERMANO LATINO