| 1. | Some shows were recorded and mixed in both stereo and quadraphonic.
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| 2. | The CD / DVD features a previously unreleased lost quadraphonic mix.
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| 3. | The album was also originally released in 4-channel quadraphonic.
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| 4. | This album was mixed and released in both stereo and quadraphonic.
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| 5. | Roger Waters gave a 3-hour show with quadraphonic sound.
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| 6. | The album was mixed and released in both stereo and quadraphonic.
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| 7. | It was the first totally quadraphonic electronic vocal album ever.
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| 8. | The album was also released in Quadraphonic as Grunt BFD1-0820.
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| 9. | DiscReet issued two albums specially remixed for quadraphonic during 1973.
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| 10. | But the quadraphonic policy had to be dropped after just two releases.
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