Three Settings from William Blake's Songs of Innocence

Piping down the valleys wild,
  Piping songs of pleasant glee,
On a cloud I saw a child,
  And he laughing said to me:

"Pipe a song about a lamb."
  So I piped with merry chear.
"Piper, pipe that song again."
  So I piped: he wept to hear.

"Drop thy pipe, thy happy pipe;
  Sing thy songs of happy chear."
So I sang the same again,
  While he wept with joy to hear.

"Piper, sit thee down and write
  In a book, that all may read."
So he vanished from my sight;
  And I pluck'd a hollow reed.

And I made a rural pen,
  And I stain'd the water clear,
And I wrote my happy songs
  Every child may joy to hear.

Merry, merry sparrow!
Under leaves so green
A happy blossom
Sees you, swift as arrow,
Seek your cradle narrow,
Near my bosom.

Pretty, pretty robin!
Under leaves so green
A happy blossom
Hears you sobbing, sobbing,
Pretty, pretty robin,
Near my bosom.

When the green woods laugh with the voice of joy,
And the dimpling stream runs laughing by;
When the air does laugh with our merry wit,
And the green hill laughs with the noise of it; 

When the meadows laugh with lively green,
And the grasshopper laughs in the merry scene;
When Mary and Susan and Emily
With their sweet round mouths sing "Ha ha he!"

When the painted birds laugh in the shade,
Where our table with cherries and nuts is spread:
Come live, and be merry, and join with me,
To sing the sweet chorus of "Ha ha he!"