Using 'Oh Canada' as a model, you'll notice that in the introduction there is a sample of a news reporter speaking about the tragedy. You may chose to do the same if applicable to your song. I sampled a recording from an ABC news report below about 'Tent City' in Martin Place, which I have distorted and accompanied with a Slow Synth Brass Swell. Like the instrumental line, I have selected notes from each chord of the 'D F G' progression to create my melodic line to accompany the news reporter.