Something like the flamenco scale (http://music.hcoder.org/music-monday/Flamenco%20scale.mp3) sounds intriguing and exotic. But how to compare them in a given song? You're in luck, because some people change songs to experiment with exactly this. For example, see how Nothing Else Matters (https://www.youtube.com/watch?v=tAGnKpE4NCI) sounds when switched to the major scale:
@estebanm Oh, my dear Lord! It has a completely different mood!
It's almost like a carol :S
@ondiz And I just found YMCA in minor. It's... haunting.
@estebanm Happy Losing My Religion, it's strange!
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