Song Bob Dylan told John Lomax

Last night I dreamed that I was watching a black and white documentary in which Bob Dylan performed an original song for archival recordist John Lomax called, "Following Mr. Johnson into Space." It went like this:

Following Mr. Johnson into Space

We all gathered around our TV sets
Most of them were black and white
We saw Mr. Armstrong put his foot down
And he did not sink out of sight.

Following Mr. Johnson into Space.
Following Mr. Johnson into Space.

They found a brand new lead mine up in Solon.
People are sanding rocks into shapes.
I was at my girlfriend's house near the college
When we followed Mr. Johnson into space.

Following Mr. Johnson into Space.
Following Mr. Johnson into Space.

They drew all the lines for their theories.
They filled all the spaces in their charts.
They kept it up 'til they were weary.
They were just doing their part.

Following Mr. Johnson into Space.
Following Mr. Johnson into Space.