So I'm driving the car on a Sunday morning in Massachusetts, when I turn on the radio to the local NPR station. It's PRI's weekly radio program Living on Earth. What an unexpected treat to hear a clip from my “Earth Sound” CD filling the car!

From the LOE program transcript:

CURWOOD: We leave you this week with sounds of the Earth…

[SOUNDS OF BURPS AND WARBLES]

CURWOOD: These are Earth sounds as you’ve probably never heard them – sped up 10,000 times and transposed up about 13 octaves…

[STRANGE REVERBERANT SOUNDS CONTINUE]

CURWOOD: The sounds come from seismic recording stations in North America and Central Asia

[CHIRPS AND BURPS CONTINUE]

CURWOOD: The frog-like burps you can hear are earthquakes, large ones followed by the chirps of aftershocks.

[MORE STRANGE SOUNDS]

CURWOOD: John Bullitt created this unusual soundscape of our solid, restless planet for the CD Earth Sound.

Program and transcript available at: Living on Earth (August 26, 2016). The "Earth Sound" clip appears towards the end of the program, just before the credits, at about 48'00".