Sunking inquired as to "what are we looking at?" Think of the display scrolling up - you can see the numbers in units of 100 Hertz (sound)
Waterfall display shows a very detailed "sound map" - the top one being "Carnatic vocalizations" (East Indian music). Normal "Western" music is "simpler".

The lower display (same units; same "scroll" speed) is the Amazing UFO sound which I took from Cyberspaceorbit.com. This is available to TEM members on the Forum. If you're not a TEM Forum member I will send it to anyone who asks.