Imagine someone whose experience of music has been limited: they have only ever heard tunes and harmonies that are in a major key. Now suppose they come across some music in a minor key. They might, perhaps, find it difficult to like at first. They might even feel that it is not proper music, or that it is out of tune, or discordant. What attitude might such a person adopt? They will notice that other people like this other music, so they might decide that the problem is with their own hearing. Or they might decide that their own hearing is fine and the minor key is simply unmusical. It would be a pity if they concluded that, but it makes some sort of sense. But what would be oppressive, what would be objectionable, would be the claim that the quality of music in a minor key can only be properly assessed by first making a ‘correction’ of each minor chord or interval into a major counterpart.