Question: what are all major keys?
Answer: G Major Scale: G – A – B – C – D – E – F♯ – G., D Major Scale: D – E – F♯ – G – A – B – C♯ – D., A Major Scale: A – B – C♯ – D – E – F♯ – G♯ – A., E Major Scale: E – F♯ – G♯ – A – B – C♯ – D♯ – E.