"We won't be singing hymns or songs. It's more a conversation with nature," said Dadson.
Kauri Project curator and chorister Ariane Craig-Smith said the performance offered the potential to speak to the forest.
"The process of people singing together is very powerful. There's a kind of magic that happens.
"There's a slightly romantic sense that we can speak to the trees, somehow.
"We don't know what impact the vibrations might have."
She said for the past 150 years, kauri had played an important role in the nation's economic, political and social history. It was now time for people to consider how they valued the tree and what they could do to help preserve it.
A second musical dieback installation by artist Ian Clothier would feature a stricken kauri at the former French Bay residence of artist Colin McCahon.
Electronic sensors detecting nutrient movement would be converted into an electronic sound file and piped into a nearby Te Uru gallery in Titirangi.