369 Hz Hertz Pure Tone Sine Wave Frequency by AstronautG207 published on 2021-10-16T03:29:01Z 369 Hz Hertz Pure Tone Sine Wave Frequency Comment by Anne Marie This is not a good one. It gave me nightmares twice. DONT LISTEN 2022-09-12T12:41:56Z Comment by D Nanjapa Thank you this is excellent can you please let us know if you have 741 as well 2022-08-17T05:20:31Z