A musically precocious child, Andreas began playing the piano before his fourth birthday, studying with Elisabeth Dounias-Sindermann and started performing publicly at age six.

At age 15, Andreas moved to New York City where he enrolled in the Pre-College division of the Juilliard School in the class of Herbert Stessin.

He has collaborated with such conductors as Christoph von Dohnanyi, Herbert Blomstedt, Riccardo Chailly, Christian Thielemann, Sir Andrew Davis, Donald Runnicles, Jonathan Nott, Susanna Mälkki, Lorin Maazel, Myung-whun Chung, Marin Alsop, Sakari Oramo, Charles Dutoit, Ludovic Morlot and Jukka-Pekka Saraste.

His solo recitals span a wide range of repertoire, and he is celebrated for his innovative and curatorial approach to programming.

Haefliger’s reputation as a uniquely insightful interpreter of Beethoven has been built over twenty years of performing and recording his “Perspectives” series, performing the complete solo works of Beethoven alongside works by other composers from Mozart to Ligeti.He has a longstanding relationship with Tonmeister Markus Heiland, piano technicians Georg Ammann and Stefan Knüpfer, and the outstanding acoustics of Salle De Musique in La Chaux-de-Fonds and the Mozartsaal at Wiener Konzerthaus.