My father (1927 -- ) remembers a little snatch of song that my grandmother (1884 - 1977) would sing each morning:

"Open up the doors and windows,
And let the merrry sunshine in!"

One recent morning, my father was singing these lines as he was raising the window blinds, and confessed that he'd never heard his mother sing the rest of the song. He casually wondered where his mother might have heard it, and what the rest of the song might be -- if there was any more to it.

And I thought: I bet some Mudcatter would know!

Some more hints: My grandmother grew up in upstate New York, and moved to Philadelphia when she married in the early 20th century.

So -- Is this a little fragment of a complete song, or was my grandmother just being (to use her favorite term) jolly?