You have to go back to the spring of 1974, for the tracks that broke the mould..
Carstairs, Montclairs Fantastic Johnny C and the like.
This opened the way for new releases,floaters (now called x-over) and even some funk to be played out.
This happened about 30 miles north west of Wigan at Blackpool Mecca, and in time the others clubs followed there lead.
When the Mecca stopped playing Northern the back end of 76 and went down the New York Disco / Jazz-Funk road, what followed was the start of the Modern Scene.
A lot of the old Mecca Crowd are still active on todays Modern scene me included.
You asked there do the modern crowd come from at Radcliffe will it is co-run by Neil who used to run The Ritz All-Dayers back in the mid 70s.
The fantastic all-dayers there have already been pointed out by Grant in a earlier post.