This is my transcription from Spotify. Several words are questionable; you can probably tell which ones because some lines don't quite make sense.

'TAIN'T NOBODY'S BUSINESS IF I DO - Part 1 (3:10)
As sung by Frank Stokes on "Memphis Rounder: The Complete Victor Recordings in Chronological Order (1928-1929)" (Document Records, DOCD-5013)

Says my old lady took and wrote me a letter.
She told me that I'd(?) treat me better.
Nobody's business but mine.
Now she wrote the letter and she wrote t'me in haste.
If you're goin' to a better gal, you better make haste.
Ain't nobody's business but my own.

It ain't nobody's business, honey,
Where I find my money,
Nobody's business but mine.
It ain't nobody business, kid,
Who in the world I do my business with.
Now it ain't nobody business but my own.

I laid my head said just between her,
Swore to the world I hadn't never seen her.
It ain't nobody's business but mine.
Now it ain't got a roof, ain't got no comb,
Poor roustabout ain't got no home.
It ain't nobody's business but my own.

It ain't nobody's business, honey,
Where in the world I find my money,
Nobody's business but mine.
It ain't nobody's business, honey,
Where in the world I find my money,
Nobody's business but my own.

I said, baby, y'oughta been told me
Fourteen years before you wrote me,
So I had some other place to go.
Now, baby, you oughta been told me,
Fourteen years before you wrote me,
So I had some other place to go.

It ain't nobody's business, kid,
Where in the world I got my money hid.
It ain't nobody's business but mine.
It ain't nobody's business, honey,
Where in the world I find my money,
Nobody's business but my own.

This(?) business, baby,
Nobody's business, baby,
No business but mine.
Nobody's business, honey.