Several of the frequencies described can be found within the BetterSleep app To combine with other sounds or content material. There’s not a magical amount of time that you've to use the Solfeggio (or 432 Hz) healing frequencies for. You may listen for 10 minutes, an hour or so, https://frecuencia396hzparaquesir44207.educationalimpactblog.com/54038134/examine-this-report-on-solfeggio-frequency-396-hz