Three Piano Trios, published in 1795 as his Opus 1, marked young Ludwig van Beethoven’s first, confident steps onto the public stage as a composer—a beginning that immediately opened up new perspectives. As a prelude to the Beethoven Year, Daniel Barenboim, Michael Barenboim, and Kian Soltani—who previously presented the composer’s complete piano trios during the Pierre Boulez Saal’s 2017–18 season—revisit these milestones of the genre. Their two programs are completed by the “Kakadu” Variations on a melody by Moravian composer Wenzel Müller.