Interview with producer of Guitar Hero

Way I Play is running an interview with HarmonixMusic's Daniel Sussman about their newest gem, Guitar Hero.  Although only a little over a week old, fans are clamoring for a sequel to this
unique guitar simulator.  Will we get it? 
Here's what he has to say on that front:

Sequels are really interesting. I think that, in a lot of cases, the sequel is an opportunity for you to make the
game you really wanted to make the first time. There were things that didn't make it into Guitar Hero for
schedule reasons that I think we'd front load for GH2.

He talks about music licensing, art design, and why some of the songs (we're looking at you Cowboys From Hell) are so darned hard.