From the seeds of a year nine music class, Butterknife has grown into a force

Members of Butterknife are, clockwise from top left, Finn Kingston, Athena Christensen, Lilli Sullivan and Gracie May. Picture supplied

By the time a band finds an international fanbase they've often built a following in their home town.

But, through the arcane machinations of the Spotify algorithm, four-piece Newcastle group Butterknife are working in reverse.