The earth and sky togeter pull off a fantastic music session together on
the longwave radio band.
These sounds might be thought of as a Crystal People invasion force but it is only our planet and it’s version of Session wHoa as it acquires a few electromagnet chares from a storm or other geomagnetic activity.
http://radbelts.gsfc.nasa.gov/outreach/RadSounds.html
If you’ll notice on that website, that also have sounds of the other planets trying to keep up in the big session.
Here’s another:
http://www-pw.physics.uiowa.edu/plasma-wave/istp/polar/magnetosound.html