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111 Hz Solfeggio Unweighted Tuning Fork
136.1 Hz OM Weighted Tuning Fork
174 Hz Solfeggio Tuning Fork (Unweighted) 174 Hz Solfeggio Tuning Fork (Unweighted)
528 Hz Tuning Fork (Unweighted)
OM Unweighted Tuning Fork 136.1 Hz