I found another set of words and the attribution, so here's the corrections.
THE WHEEL OF THE YEAR
(Shira Kammen on The Almanac: Time and the Turning Wheel CD 2003)

CHORUS:
The wheel of the year goes round and round
The wheel of the year goes round
Turns top to the bottom and the bottom to the top
And the wheel of the year goes round and round

Oh the seed doth die and the grass doth spring
At harvest time it is reaped and mown
Then the grass doth die and the seed doth spring
and the wheel of the year goes round and round

At Llamas time the sheep we bless
And in the dark the fires we ban
And the sun goes down and the moon comes up
All things work together in the Weaver's plan

Oh dark is light and light is dark
I'll tell you a riddle if you'll bend to me an ear
Oh death and life are but one thing
Like sides of a penny or the circle of the year

Our thanks to yonder good grey knight
Who bends his neck to the coming of the scythe
For all that liveth feed on death
All things that die serve the cause of life

Anyone tell me anything more about this?
Blessings,
Barbara