Well...i'l be dead honest
This game would have been great if you could have worked harder or organized it better,you had some originality....heres the rating :
Music : Only one song? How the heck did the guy get to be a rock star by only playing one song and only seven time,if it would be like that i'd be a rock starwithin a day >.<
Graphics : Not bad,could be better,maybe you could put more side-characters in the game? ( NPCS,the guy is like alone in the world).
Gameplay : Random notes? you should try and make them follow the beat! then the game would be better,i like the second play mode,i call it the note blocker...That one was original,but sometimes too hard,and you should balance your levels,in the first level you have to get a perfect and in others you don't need to?
Store : The money concept and the store is really original,first time i see this with a rythm game on newgrounds,you should make so what you buy could be more usefull,like new guitars to get more attention for person,new songs to play for people,Some musicians to have more popularity,pay advertising etc.
House : I like the fact that you can move the things in your house,original again! Only problem,you should be able to buy new houses or new furniture,because theres not really some place for a change in them,if you get what i mean.
Character : You should have more character choice,and maybe harder Modes,like easy medium hard and pro....and you could win secret characters.
Stage : You should have more stages you can play in,
Bug or Glitches to fix? : Maybe the background music should stop when you play a song,and you should maybe make it so you hear the croud yelling. The stickman thing when you buy it,you cna't even use it!
Thats about all i have to say,feel free to reply back and tell me if it was usefull?