Video game I saw on iCarly help?

Ok I was watching iCarly Monday morning and it was the episode iFind Lewberts Lost Love, and in the scene where Sam and Freddie are looking at Lewberts personal items Carly is in the background playing a guitar hero like game witha Violin. I was just wondering if someone could tell me what that game is called, and I understand that there suppose to be in Seattle Washington so I was also wondering if that game can be found in Illinois. So yet again can someone please tell me what this game is called because I'd like to find it and it interested me cause I play violin and I think it's kind of cool that a guitar hero like game has a violin like hero thing. I know I'm weird, so if someone has seen iCarly and have seen this episode then please HELP!|||its NOT a real game. sitcoms just make fictional games for the show. its probably a parody of guitar hero. but serously, for example, the pear phone that they have on icarly is NOT a real phone brand. its a parody of iphone, but i am sure that the show isnt really allowed to show other companies brands or they could get sued. so sadly, that game is nonexistent. maybe someday they will make a game like that for you to play....it would be really fun!|||its not real its just a video of guitar hero played from freddy's laptop to the monitor and carly is jus faking it with the violin|||it doesn't exist in the real world