For Further Review:

Effects of Singing Bowl Sound Meditation on Mood, Tension, and Well-being: An Observational Study

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5871151/

The Effectiveness of Vibroacoustic Sound Therapy in Medicine

https://sites.duke.edu/soundscapes/2015/12/04/the-effectiveness-of-vibroacoustic-sound-therapy-in-medicine/

What's the Buzz? Sound Therapy

https://www.nytimes.com/2005/11/24/fashion/thursdaystyles/whats-the-buzz-sound-therapy.html