All of my most minor complaints have been answered, it seems. Also mentioned in the article is that there is a drum trainer included to teach you how to actually play drums for reals. Fuck. Yes.
The path through the setlist is also more flexible. Instead of hammering your way through section after section, you can take on different "challenges" to unlock more of the setlist: you can focus on guitar-centric songs, or skip to the "decade" challenges. The songs on the disc will integrate seamlessly with the songs you've downloaded, making your '70s setlist longer and longer the more Rush tracks you buy. And you'll now be able to queue up your setlists, using an interface that's based on the Music Store UI. You'll also be able to play whole albums automatically in the right order, to save you the hassle of forgetting the tracklist halfway through Doolittle.
In the band world tour, you'll still compete for cash and fans, but you'll have more variables to play with. You can hire staff – promoters, your mom – to support your band or find new gigs. A risk and reward system will complicate the business end: hire a sleezy accountant and you may clear more money from a successful gig, or you may get robbed if you underperform.
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Harmonix is also looking into merchandising options. While they haven't confirmed details, they're exploring a way to let you buy real-life posters and t-shirts bearing the name and logo of your imaginary band. This struck me as a funny yet not-so-funny idea: it adds an intriguing dimension to the act of pretending you're in a rock band. In Rock Band, you can pick it up for fun and laugh at the plastic toy guitar – but the longer you play and the better you get, the more invested you can become in your characters and your band. As Teasdale put it, "It's like getting people to roleplay without even realizing it."