If singer-flutist Ashleigh Ball sounds unusually animated on “Is” — the frothy debut of her Canadian alterna-pop trio Hey Ocean! — don’t be too surprised. The singer, who brings Hey Ocean! to The City this week, has been lending her elastic vocal talents to children’s cartoon TV programs for eight years, playing everything from the Care Bears’ Oopsy Bear to Black Widow in “Iron Man: Armored Adventures.” Read More