I have to say this was a great period overall for music. I mean Ac/Dc with rock and roll plus bagpipes was awesome! Carmine Apice one of the drummers for Rod Stewart also had a side band with a few other famous musicians. I learned to play drums in large part to him and his tutoring.
Also a lot of early progressive rock happening during this time. Unfortunately I do not see as much creativity in the music now and I am I guess a part of the younger generation being still under 30.