The Sierra Duo (John Haines-Eitzen, cello and Matthew Bengtson, piano) performs Beethoven’s 7 Variations in E-flat Major (on "Bei Männern, welche Liebe fühlen" from Mozart's The Magic Flute) followed by an epic cello and piano sonata by visiting composer Allen McCullough inspired by themes by Brahms, Ravel, and Bruckner.