Puff is a good tune for it, Capri, and it carries with it the feeling of the older song. (One suggestion - "Magic's just for children" might fit easier with the tune, and maybe it sounds more the way people might say it. But they might say it differently where you are.)

Here is a poem that it immediately reminded me of, and I posted it in the Mudcat last year. It's about a park in Dublin called Stephen's Green, and was written by Peader Kearney, who also wrote the Irish National Anthem back at the start of the last century, about the same time he wrote this. It's the last verse that Capri's song reminded me of.

I wake to the thrush revealing
His joy on a dewy morn,
And soft through my window stealing,
The scent of the flowering thorn.
I haste to share in the splendour
Of water and flower and tree,
And up from my heart I render,
My praise, oh my God to Thee.

And little children straying
O'er paths where their elders trod,
Their wondering eyes surveying
The wonderful works of God.
For the innocent hearts of childhood,
Find God in each flower and tree,
And I pray while I tread life's journey
With the eyes of a child to see.

Where beauty has birth and being -
Men call it Stephen's Green,
And pass on their way unseeing
What the eyes of a child has seen.
Their blindness but moves our pity,
And now you will understand
How here in the heart of a city,
I was born in Fairyland!