Bruce, this music is nothing to do with Australia and some consider it hackneyed, but when the movie Gallipoli
was being filmed, director Peter Weir appeared just before the scene when we were filming the Battle of the Nek. He had a large boom-box over his shoulder and he walked up and down the trench playing the Albinoni Adagio, to try and reflect the ethereal calm as the last soldier of each wave was shot down and silence prevailed. The extras would not have been familiar with classical music but you could see that they were touched by the scene and the music and the realisation that the soldiers were around their age.
Personally, when you get to Villers-Bretonneux, I recommend an overview of the Australian brigade attacks and perhaps touch on some of the major gas attacks while it was being defended. The Australian 15th brigade lost 1,000 and some of these were when the brigade gas NCO took off his mask, declared the area safe but because the gas had damaged his sense of smell, the area was still saturated and men died. My grandfather's brigade lost over 600. They experienced 20,000 gas shells in 24 hours and sugar cubes dissolved and potatoes shrivelled. The 15th brigade casualties formed up into groups of 20 blinded soldiers, linked arms and with a fully sighted soldier at the front and end and sometimes in the middle, set off for medical assistance. Here is my grandfather's photo of the main street, probably from late May 1918.