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78 Hz Square Tone Amplitude 1
78 Hz Sawtooth Tone Amplitude 1
74 Hz Square Tone Amplitude 1
76 Hz Square Tone Amplitude 1
91 Hz Square Tone Amplitude 1
78 Hz Square Wave 30 sec
78 hz square
79 Hz Sine Tone Amplitude 1
84 Hz Square Tone Amplitude 1
78 hz
78 Hz
78.1 Hz Square Wave 30 sec
