A new Bach project by pianist Aleksander Dębicz, violinist Linus Roth, and the orchestra Il Giardino d’Amore under the direction of Stefan Plewniak is both a modern interpretation of the Leipzig genius’s works and a return to the performance practice of the Baroque era. In Bach’s time, musicians freely improvised, created preludes, and enriched original works with their own creative parts. Dębicz…