60 seconds should be enough to compare shouldn't it?
And also, no samples that you made yourself. Like if you have a workstation or sampler, and you went to sample your own Gibson guitar to use as the guitar sound. That's cheating!
All sounds should be produced from the keyboard, you may add effects to enhance the sound, but no sounds you made from your own samples. And if you use effects and tricks to spice it up I would appreciate you sent me som notes on what you did, so I can put that in the comment section.
Doc-Z