I still remember the first time I heard Mogwai. It was at a home party where people would bring their own records and take turns DJ'ing. I brought Slowdive and My Bloody Valentine. Suddenly this guy appears with two ep's and the moment he starts playing I'm speechless. It was obvious that - whatever it was - was going to be among my favourite bands. This was back in '98 and the 'no education=no future" ep had just been released.
I'm not going to waste your time (or mine) by trying to describe or categorize their music. I wouldn't be able to anyway. I'll just say they're amazing. Give them a shot, if you haven't heard them before.
Mogwai - Travel is Dangerous
Mogwai - Stanley Kubrick