Who created the polychoral style of composition in which one choir stands across from another while performing

What steps must perseus take to slay the gorgon?

Acurious child asked his mother: “mommy, why are some of your hairs turning grey? ” the mother tried to use this occasion to teach her child: “it is because of you, dear. every bad action of yours will turn one of my hairs grey! ” the child replied innocently: “now i know why grandmother has only grey hairs on her head.”

Which clef would be used for the violin? a. treble b. tenor c. bass d. alto what causes sound? a. electric fields b. magnetic fields c. vibrating electrons d. vibrating molecules