I'm just starting learning musical theory and trying to grasp chord progression and modulation concept. I was watching youtube video about evanescence chord progression (
C-Em-C-Em), and tried to come up with a continuation. I've got these two options:
I think they feel good to me, but I do not understand what is happening in these. I was playing in C major, how come I got G# and A# in it? I don't think I've modulated, at least it does not sound to me like that. And (2) sounds to me like I've modulated to F major, but why D# there? It does not belong to neither Cmaj nor Fmaj.
I assume here that because progression feels good, then there is a good explanation why, I just need somebody to explain that to me.
On a side note, I would also appreciate more material to read on the topic