For the record, the morse code seems to be the first couple of paragraphs of the "Earth" article on Wikipedia at some point in the past. I don't understand morse myself, but I do have a program that's able to decode it. I wasn't able to catch all of it, but here's what I *did* catch (the garbage at the start is from before I tuned the decoder program to catch it, and this is starting from about the middle of the song, with only 3-4 minutes left to go):
# s fo i med etttwttteh4 billiutn year i ago, and life appeared on its surface within a billion years. since then, earth"s biosphere has significantly altered the atmosphere and other abiotic conditions on the planet, enabling the proliferation of aerobic organisms as wea l as the formation of the ozone layer which, together with earth"s magnetic field, blocks harmful radiation, permitting life on land.