Valmai - if you send fliers to the "VP Ents" (Vice-President Entertainment) at the two universities, somone should deal with them. The UoB address will be:

VP Entertainment
Student Union
University of Brighton
Cockcroft Building
Lewes Road
Brighton BN2 4GJ

I don't know the exact UoS address offhand, but "University of Sussex, Falmer", etc., should get there.

I've not heard of any huge demand for traditional music among the UoB student fraternity, but there might well be several souls who want this stuff but don't know where to go.