Edit though: “in the background”? Well I sometimes let these play in another room (and also at lowest volume while outdoors) BUT didn’t overlapped them directly/in the same room with other fields yet (as far as I remember).
Yes! This is the bomb for me! This is not just ambient audio, but also sort of a portal to some heavenly energies.
Also, The Essence of Mantras. Mantras and their energy affect the inside and the outside. In 1998, still unaware of most things, I visited an Ashram in Rishikesh in India, mainly because they had free boarding and lodging (as a backpacking student in a foreign country trying to pinch pennies lol)
In the night, I could see a lot of angelic beings, divine energies, etc., and it just blew my mind. I felt healed, loved, and rejuvenated. Contrary to what people think, not all monasteries and ashrams exude good energy (I’ve been in Buddhist monasteries in Nepal and Tibet that have worse energies than the local ranch market, thanks to sickly energies, sexual abuse, etc.) - but this blew my mind. And then I found out the reason - the Ashram was founded in the 1940s and since then, there was an unbroken practice of reciting certain mantras in a chorus non-stop throughout the day. The Ashram was divided into multiple shifts and there was always a group that recited the mantra till the next group took over. So 50+ years of non-stop mantra recitation, the whole environment was filled with massive amounts of energy and seemed to attract many benevolent beings.
I’ve had a taste of similar energy playing the Essence of Mantras audio non-stop in my place, along with Sacred Sanctuary, Leyline, Plasma Flower, and White Light audios.