I'm in a song in C major and I often see Emaj and Amaj appearing.
My question is where are Emaj and Amaj borrowed from?

See screenshot below. There is no Emaj and Amaj in other modes with the same tonic.


Relationship size. C=Am

I'm in A harmonic minor and found out that the V scale is Emaj
But still no Amaj

Finally, I found Emaj and Amaj in A harmonic major. So, my question is, what can I understand as Emaj and Amaj in C major where is A harmonic major?

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