Pern and its associate canonical references are copyright 1967, Anne McCaffrey. This is a filk of 'The Gospel Truth' from Hercules.
Back when Fort Hold was new
The planet Pern was down on its luck
And ev'rywhere gigantic spores called Threadfall ran amok
It was a nasty place
There was a mess wherever you stepped
Where Threadfall reigned and Pernquakes and volcanoes never slept
And then along came Sean
He hurled his dragonfire
He zapped
Flamed those Threadspores in the sky
They're trapped
And on his own stopped Threadfall in its tracks
And that's the harper's truth
The guy was too type A to just relax
And that's the world's first dish
Sean tamed old Pern while still in his youth
Though, honey, it may seem impossible
That's the harper's truth
Up in old Fort Weyr life was neat and
Smooth as sweet vermouth
Though, honey, it may seem impossible
That's the harper's truth