Last night I decided to go through my career mode in GH2 and FC (5 gold stars) each of the tier songs on easy. Because I can. What I found was that my brain decided to go and do something else halfway through each song, and it did it multiple times on Freya. Easy is, well, easy. So easy that your fingers forget to move sometimes so I just miss notes when I shouldn't. It takes quite a bit of concentration to actually get through a song like Freya or the Lamb of God song (which has messed up timing btw).