[igotrhythm]

Actually (and Bandit pointed this out to me earlier), the end of song scoring system also subtracts 15 points for each boo you get, and in the game you get 5 points taken away for each boo. So in total, the scoring works this way (forget about the during-song score):

550 for each perfect
275 for each good
55 for each average
-310 for each miss
-20 for each boo
1000 for each step in your max combo