Guitar Hero World Tour Question?

I'm looking into pre-ordering Guitar Hero World Tour for Playstation 3. I don't have GH3 or GH Aerosmith, but am also looking into buying those. If I buy Guitar Hero World Tour band bundle, am I able to buy JUST the GH3 and GH Aerosmith games alone and still be able to play them with the World Tour instruments? ... show more I'm looking into pre-ordering Guitar Hero World Tour for Playstation 3. I don't have GH3 or GH Aerosmith, but am also looking into buying those. If I buy Guitar Hero World Tour band bundle, am I able to buy JUST the GH3 and GH Aerosmith games alone and still be able to play them with the World Tour instruments?

I've browsed yahoo answers in search of this question, but didn't find to much to playstation 3.
Thanks in advance.
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