The very first time I played it, Barbara gave me 3 stars and suggested Ama (teur) difficulty. I played a few songs and then went to Daily Live. She soon forced me to play Pro at some point, and then after like 3 more songs she threw Master at my face. (Got a miserable 75ish and got demoted to 5 stars =P) While note sounds in Master is the closest to the original song, LR stuff is kinda hard at first. I'm sticking to Pro for now. Well, that doesn't mean I got 100 on every Beginner and Ama songs though. Even though I full combo the song, i frequently get like 98. Don't have any 100 for 4 stars and above. Especially when the line changes, I have trouble getting BESTs. Practice makes perfect but this game is more challenging than I thought.