Director Peter Berggren set out to record the “live happenings” of conductor Zubin Mehta and the Israeli Philharmonic as they rehearsed Richard Strauss’s early masterpiece Till Eulenspiegels Lustige Streiche. The intent was to break down the distance between conductor and audience, so the role of the maestro might seem less mysterious to viewers. Recording all the orchestra’s rehearsal sessions and the first run-through of the piece, the finished program draws on wealth of visual material to give a rare inside look at the creative process.