Recently the NZ Herald published an investigation into New Zealand music in the charts. Its findings were grim: in 2017 only seven local songs made the top ten and six were by Lorde. Compared with the heyday of mainstream music success in the early 2000s, on first glance, this decline seems tragic. Joanna Hunkin Photo: TVNZ But charts are only one way to measure success and a seriously compromised one at that.