Letter Grades

[fusi0n]

I played the song 'A' for the first time and got an A on it. When I played it a second time, I got a higher score and much higher combo, but I got a B on the song. Why might this have happened?

[plasmix]

You probably got more Greats and Misses.

[makaveli121212]

certain songs will penalize you for having too many misses