Northern Soul music is underground mainly American Soul music from the 1960s and early 1970s. It was generally faster and less polished than most soul music. It became popular in the north of England in the 1970s when young working class men would go buy these records from little known American musicians off the docks and then put on underground Northern Soul nights anywhere that had a dance floor. The heavy beat and fast pace made it perfect dance music.
The backgrounds of the mainly African Americans who made the music and the white working class northerners who bought their music and out on the nights were very similar, poor with few economic opportunities, which is part of the reason the working class northerners connected with it.
I think a northern soul night could be popular and would be welcome change from the kind of music Asylum usually plays.