'Concussion Summer' on Not Not Fun is by a merry band of travelers called Social Junk. I've never had concussion but I was hoping to this summer, sadly there's been no decent weather for me to go out tree climbing or trying to get myself set upon by gangs of local toughs. Next year, eh? It's kind of hard to know what to say about this LP really, other than I like it. Some bits are noisy and lo-fi tribal a bit like that amazing Heavy Winged LP from a couple of weeks back and there are even…