Heikki Savolained, sound engineer, presents information on his research at the Bosnian Pyramids. By taking measurements with electromagnetic sensors he presents his findings. This electromagnetic phenomena is related to meditation.
Heikki Savolainen presents some of his finding of electromagnetic phenomena in Macedonia. He has transposed the electromagnetic waves to soundwaves and showcases these sounds.
I could only find the first part of this video. If you find the others, please let me know.