Just the other day my mind was blown when I learned that the startup chord was inspired by the chord at the end of A Day In The Life from Sgt. Pepper's. Source?

Just the other day my mind was blown when I learned that the startup chord was inspired by the chord at the end of A Day In The Life from Sgt. Pepper's. Source? The guy who created it: https://www.youtube.com/watch?v=5838mfezO8M https://www.youtube.com/watch?v=5838mfezO8M A Day In The Life (time link to a few seconds before it hits at 4:21): https://youtu.be/usNsCeOV4GM?t=249 https://youtu.be/usNsCeOV4GM?t=249