Without being able to listen to the audio sample, I can't determine the type of scale you are hearing. However, I can explain the characteristics of each scale:
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Major Scale: Sounds bright and happy, follows the pattern of whole and half steps: W-W-H-W-W-W-H.
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Natural Minor Scale: Sounds more somber and melancholy, follows the pattern: W-H-W-W-H-W-W.
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Parallel Scale: Refers to scales that share the same tonic but differ in mode (e.g., C major and C natural minor).
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Accidental: Refers to notes that are not in the standard scale and could indicate a temporary shift in key or added chromaticism.
You will need to listen to the audio sample and compare it to these descriptions to identify the scale.