First one: It would be on Sol
Second one: No. It would be on La. The note is B. And is a Bflat
(I don't know Bass Clef as well. I play Alto Sax, which uses Treble Clef. So please forgive me)
Third one: It would be A flat
Fourth one: It would be C then C flat
(Again, I don't know Bass Clef that well, so don't count on my answers)
1.The power of apparently influencing the course of events by using mysterious or supernatural forces.
2.Used in magic or working by magic; having or apparently having supernatural powers.
3.Move, change, or create by or as if by magic.\
It all depends on what context.
A. The politics of peace and war in Europe at the time