Swiss cellist studied cello at the Zurich Art Academy with Markus Stocker and Claude Starck, and in London with William Pleeth, making further studies in baroque cello with Christophe Coin and viola da gamba with Paolo Pandolfo. Zeller is principal cellist of the Basel Chamber Orchestra. He has played with I Barrocchisti Lugano, I Suonatori della Gioiosa Marca, Ensemble Baroque de Limoges, Orchestre des Champs- Elysées, La Scintilla and Capella Gabetta, and is a member of the viol consort Trio Lupo. He teaches baroque cello and chamber music at the Zürcher Hochschule der Künste.