E Pluribus Unum: From Many, One. Returning for his second BSO program this season, Dima Slobodeniouk leads one of the American composer John Adams' first major works, Harmonium, for chorus and orchestra. Written in 1981 for the San Francisco Symphony, this grand, half-hour work sets a poem by John Donne and two by Emily Dickinson in gradually unfolding, majestic textures. With its slowly evolving harmonic fields and rhythmic energy, Harmonium marked the future Pulitzer Prize winner and composer of the operas Doctor Atomic and Nixon in China as an important and original voice in American music. Beethoven's larger-than-life, ecstatic Symphony No. 9 closes the season. Performed in German with English supertitles.