Schumann resonance or grounding, which is the best to land?

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1

I need to shorten my playlist and I want to remove one of these two, besides I have IQ game changer, I use these 3 as a support, but I really don’t know if they are all necessary, I want to shorten the audios I make.

2

Schumann resonance

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3

Schuman is best

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4

thanks.