I know. I hold the opinion that Schumann resonance at 8.7Hz is a global average resulting from all planetary and the Sun’s electromagnetic activity. It isn’t a static phenomenon, it’s an average from a plethora of electric things happening.
If you happen to be located at an area with strong activity, your local Schumann freq will be far from the global average. Go and listen to a high-end system near a magnetic pole.
(“I might be wrong”, by Thomas Yorkeshire and The Radioheads)
Now what about the poles changing position and some day even switching? Could happen. Not a doomsday, except, would we then have to switch our gear’s polarity? Haha.