Above is the spectrogram to this richly textured five-minute sound file of space dust particles hitting Earth's ionosphere as they are received and recorded on Thomas Ashcraft's forward scatter radio array. We could probably listen to it over and over, replace our CADing music with an extended version lasting hours. All night long eavesdropping on the earth infinitesimally accruing new terrain expelled by extraterrestrial landscapes. It's like Haydn's The Creation re-composed by Ligeti.
Is Eyjafjallajökull producing similarly marvelous soundscapes?