Many of the frequencies mentioned are available while in the BetterSleep application to mix with other sounds or content. There’s not a magical amount of time you have to use the Solfeggio (or 432 Hz) healing frequencies for. You may pay attention for 10 minutes, an hour or so, https://what-frequency-is-b93592.blogsumer.com/31505579/examine-this-report-on-396-hz-meditation-music