Let's say most of your great grandfather's people were killed by another group of people and dispossessed of their land and property. And then someone came alon

Let's say most of your great grandfather's people were killed by another group of people and dispossessed of their land and property. And then someone came along and coerced them into making recordings, perhaps of their secret religious songs. Maybe for instance your ancestor was desperately poor - because their land had been stolen etc - and someone came along offering you food or a little money to buy food. All you had to do was reveal your cultural legacy to the people who destroyed it. So now 100 years later do the descendants of those people have the moral justification to do whatever they want with the recordings? I argue the answer is no, because there's at least a high likelihood that consent wasn't freely given.