Hi:

I just watched the beginner Core 1 program section where Lisa instructs you in Key of XXX: major and minor chords.

I am trying to understand [u]why[/u] the 1, 4, 5 system works for determining major chords for each key. Can you provide more insight, please?

In contrast, I understand why certain minor keys change to a "#minor," as I can see it relates to the positioning of notes on the piano keyboard.

Thank you,
Teri