For that reason, doubt free faith. By the age of 4x02005;years, Mozart could tell whether an instrument was out of tune and could learn a piece in half an hour. This is the second of Rubinsteins three live albums. While these encores are all fine, what a shame that out of apparent deference to Rubinsteins wishes the producers continue to suppress the rest, all of which were taped and which would have immeasurably increased our knowledge of the artist. For detailed recaps please visit Once Upon a Times Season 2 Episode Guide. This review is from Mozarts Letters, Mozarts Life Selected Letters (Hardcover) What a fine accomplishment. This collection comprises a fine overview of his success.