 Bach, however, remains a centerpiece of the festival via Helmuth Rilling's conducting master class, which leads students through Cantatas, Masses, Passions, and other such choral works.Additionally, the festival frequently performs the largest Bach works with full forces; for example, in the 300th-anniversary year of Bach's birth in 1985, the festival performed the "St. John Passion", "St. Matthew Passion", "B-minor Mass", and all six "Brandenburg Concertos", culminating in an appearance at the Hollywood Bowl.The success of the Bach Festival model and structure led Helmuth Rilling to create the Internationale Bachakademie Stuttgart and several other Bach Academies around the world.