Listen to Vol. IV - The Delights and Dangers of Ambiguity: For Instance, Hardly Have We Had Time online. Vol. IV - The Delights and Dangers of Ambiguity: For Instance, Hardly Have We Had Time is an English language song and is sung by Leonard Bernstein. Vol. IV - The Delights and Dangers of Ambiguity: For Instance, Hardly Have We Had Time, from the album Leonard Bernstein - The Harvard Lectures, was released in the year 2018. The duration of the song is 2:29. Download English songs online from JioSaavn.