There are at least four artists known as Ratio: 1. Ratio is a Berlin-based techno act by Michael Peter and Martin Retschitzegger. They originally came from Vienna. 2. Ratio is the alias of electronic musician Michael Hoffman, out of Brooklyn, NY. He has released two albums: Amblypygi and Public. He has also provided four songs for the pre-show music of "Journey to the Stars," the 4th space show from The American Museum of Natural History. 3. A drum and bass producer. 4. An industrial rock band from Madrid http://www.reverbnation.com/ratioband


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