Jem Aswad Senior Music EditorAs the Prince estate moves forward after years of confusion following the singer’s 2016 death, the six heirs are divided into two camps: the three siblings who sold their interests to Primary Wave, and the three who have retained their holdings.With the value of the estate recently determined at $156.4 million, the two parties are now establishing a structure for how to work together. In a ruling on Tuesday, a Minnesota judge decided against Primary Wave’s proposal to create a single holding company.