This morning a student asked about something she read in the "Harper's Dictionary Of Music". Question was, "Does A major and a minor really have the same key signature, three sharps?" A major has three sharps, F# C# G# but "a" minor is actually relative to "C" major and has no sharps or flats. So, how can a "Dictionary of Music" state, "A major and a minor have the same key signature, three sharps?" This Dictionary looks to be old published 1973.
So, what are we missing here? I looked at her, paused a bit, then grab the book from her and threw it out the winder.
Oops, sorry. I think you are right Skysaw. Ezz been edited.