Sine Waves For Concentration

44.000 Hz Sine Wave

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3:01

46.000 Hz Sine Wave

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48.000 Hz Sine Wave

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50.000 Hz Sine Wave

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52.000 Hz Sine Wave

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54.000 Hz Sine Wave

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56.000 Hz Sine Wave

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58.000 Hz Sine Wave

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60.000 Hz Sine Wave

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62.000 Hz Sine Wave

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