Nah, this is the simplest way they could do it. A 1-100 rating system would be awful. I've been on lots of sites where systems like that were used. No matter how many times you tell people, they'll never remember. Some people will see "50" as a "failing" grade. Others will see it as middle of the road. When dealing with masses of people, keeping it simple is all you can do. The only guidelines you "need" to judge by are which song you like more. No need to complicate it with anything else. Normal people can't be expected to do any more, and I'm not saying that to be insulting, but your average listener has a hard time separating songwriting from production.

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