Sergiu Celibidache is regarded as the greatest Bruckner conductor of our time, Bruckner's music being the focus of his work with the Munich Philharmonic. This documentary shows him rehearsing Bruckner's Grosse Messe in F minor, from the first choir rehearsal with piano accompaniment onwards. We watch choir, orchestra and soloists gradually forming a harmonious whole, right up to the actual performance. At rehearsals and in conversations, Celibidache describes his relationship to Bruckner and the F-minor Messe, and his ideal of promoting a German orchestral tradition along the lines of Wilhelm Furtwangler.