Photo: Bernd Uhlig Ingo Metzmacher, the conductor for this year’s Aix-en-Provence festival’s production of Strauss’ “Salome” stressed time and again throughout his program notes the need for a cool head, for orchestral restraint and calm, for sobriety and balance. His stated aim was to ensure the orchestra does not predominate, does not get carried away, is not too loud, but {…}