How to learn to correctly spell the note names of all triads

In this video, I go over the idea of what note names are based on and how anyone can memorize them with very little effort.
The note names are based on the C major scale, which is the foundational scale in Western music without any sharps or flats.
The C major scale consists of the following notes: C, D, E, F, G, A, B, C.
Triads in the C Major Scale:
C Major (I):
Notes: C, E, G
(Root: C, Major third: E, Perfect fifth: G)
D Minor (ii):
Notes: D, F, A
(Root: D, Minor third: F, Perfect fifth: A)
E Minor (iii):
Notes: E, G, B
(Root: E, Minor third: G, Perfect fifth: B)
F Major (IV):
Notes: F, A, C
(Root: F, Major third: A, Perfect fifth: C)
G Major (V):
Notes: G, B, D
(Root: G, Major third: B, Perfect fifth: D)
A Minor (vi):
Notes: A, C, E
(Root: A, Minor third: C, Perfect fifth: E)
B Diminished (vii°):
Notes: B, D, F
(Root: B, Minor third: D, Diminished fifth: F)

[@aryarseno7760]

interesting history!! glad you back to create video lesson!!

[@jazzwoodshed7574]

Thank you my friend. I'm glad you like it. :)