Peak 70s: The music of 1975

The 70s began with earnest album rock, spent far too much time under the mirror-ball of disco, and ended in punk's snotty anger. 

In between all of that, there was a period, perhaps just a year, that I remember as 1970s music. It had a distinct sound and flavour, a delicious blend of pop and rock some remember fondly, while others roll their eyes.

I think the 70s peaked in the music of 1975.