Longer, louder and more arresting than any music that had gone before it, Beethoven’s ‘Eroica’ Symphony left audiences dumbfounded at its first performance in 1805. Over two centuries later, its ideals of liberty, endurance and fortitude remain undimmed. Played on the period instruments of the Orchestra of the Age of Enlightenment, Beethoven’s pivotal symphony will appear fresh-minted under Antonello Manacorda. He begins with a perky little number by the 8-year-old Mozart and continues with the intensity, power and momentum of the Symphony No. 3 by 19th-century France’s compositional trailblazer, Louise Farrenc.