Sounds of Power Meters are similar to sounds of Bosnian Pyramids
power meter sounds are similar to Bosnian Pyramid sounds power meter sound 3:10 into https://www.youtube.com/watch?v=dW2AsO6 Z-Uo bosnian pyramid sound 2:02:20 into https://www.youtube.com/watch?v=CPNVQD5 TSYU