The Design and Implementation of laffer1

I've been playing Guitar Hero: Aerosmith lately.  I bought a copy used for $18.  The game is quite fun, but there are a few subtle differences from Guitar Hero 3.  First, you have to play the first two gigs to unlock the last two.  In the previous game, you could play any two of the first three to get the last one to show up.  Contrary to what I thought, the game includes several tracks that are not Aerosmith songs.  These are played by the opening act which you are (the first 2 songs per level).  

It's a fun game if you like aerosmith or old music (70s/early 80s)  as many of the covers seem to be from that time period so far.  I happen to like that sort of music.  

The game seems to take longer to load than the previous game.  I think the load screens are less entertaining so I notice.