This is what I've been saying all along...
If the audio loop styles are THAT much better (and they had better be, at that price!), you are NOT going to want to follow them up with something that sounds quite ordinary at best.
And for those that perform music that the ROM live loop music library doesn't cover (or want multiple styles in the same genre), you are kind of in trouble...
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An arranger is just a tool. What matters is what you build with it..!