Surrey

It is common knowledge, in the narrative of musical theatre history, that Oklahoma changed everything. No longer was a collection of clever songs enough. Now they had to serve the story. The story for Curly is to attract Laura. This is his pitch: 

When I take you out tonight with me

Honey, here's the way it's gonna be

You will sit behind a team of snow white horses

In the slickest gig you've ever seen

So goes the intro bit. 

Chicks and ducks and geese better scurry
When I take you out in the surrey
When I take you out in the surrey with the fringe on top

Consider the rhyme. The repetition of "surrey" works because we get the tag "with the fringe on top."

Watch that fringe and see how it flutters
When I drive them high steppen strutters
Nosy pokes will peek through their shutters and their eyes will pop!

How gorgeous is that. We get the three -utters, then the tag that closes the -op rhyme.

The wheels are yellow, the upholstry's brown
The dashboard's genuine leather
With eisenglass curtains you can roll right down
In case there's a change in the weather

Oscar Hammerstein had the knack for making the rhyme seem natural, effortless, perfect for the moment of the story.

Two bright side lights winkin' and blinkin'
Ain't no finer rig I'm a thinkin'
You can keep your rig if you're thinkin that I'd keer to swap
Fer that shiny little surrey with the fringe on the top

Winkin, blinkin, thinkin, thinkin "that I'd keer to swap."

And now we're ready, having been cued back to "pop," for the closing "top."

Would you say the fringe was made of silk?
Wouldn't have no other kind but silk
Has it really got a team of snow white horses?
One's like snow, the other's more like milk

Here we're back to the intro melody. In the most recent revival of Oklahoma, the potential self-consciousness that might scuttle the silk/milk rhyme is avoided by drawing out the mmmmmm-ilk. By the time it lands, we're into the rhythm of the next verse.

All the world'll fly in a flurry
When I take you out in the surrey
When I take you out in the surrey with the fringe on top
When we hit that road hell-for-leather
Cats and dogs will dance in the heather
Birds and frogs will sing all together and the toads will hop!

Again, a-a-a-b, c-c-c-b. The natural world falls into line.

The wind'll whistle as we rattle along
The cows'll moo in the clover
The river will ripple out a whispered song
And whisper over and over

With that, permission to repeat:

Don't you wish you'd go on forever
Don't you wish you'd go on forever
Don't you wish you'd go on forever
And you'd never stop?
In that shiny little surrey with the fringe on the top

Heading for lullaby now . . .

I can see the stars gettin' blurry
When we ride back home in the surrey
Ridin' slowly home on the surrey
With the fringe on top
I can feel the day gettin' older
Feel a sleepy head near my shoulder
Till it falls kerplop

The sun is swimming on the rim of a hill
The moon is taking a header
And just when I'm thinking all the earth is still
A lark'll wake up in the meader

Hush, you bird. My baby's a sleepin'
Maybe got a dream worth a keepin'
Whoa, you team and just keep a creepin'
At a slow clip clop
Don't you hurry little surrey
With the fringe on the top

The rhyme always gets where it needs to be.