I get following quote from https://www.musiah.com/articles/equipment-tips/piano-lessons-or-keyboard-lessons-what-is-the-difference.html
In the key of C Major, C is “do”; but in the key of G Major, G is “do”. A student who cannot identify middle C on the piano has not been taught piano properly, in my view.
I'm very newbie and just learning music theory, Normally we use
do, re, mi, fa, sol, la, si in Turkey. Since I learn music from international resources. I directly mapped with
C D E F G A B. But, once I read that I couldn't really understand this variability. I confused.
Could you please explain what does it mean ?
Is that also mean reading following notes as
G A B C D E F G instead of
C D E F G A B C in key of G Major ?