The midi was made from Sharp's notation of Mr. Sparks' singing, rather than from the later piano arrangement, so we will have to blame him for the phrasing and tempo!  As I mentioned earlier, Sharp was not to blame for maiden name; that is how Mr. Sparks sang it.

Very few examples of the song have been found in tradition in Britain, and until relatively recently the Sparks variant carried the only known traditional tune for it (I discount for the moment the large number of Hares on the Mountain songs, sometimes considered relatives, but about which there is still disagreement); as Mike mentioned above, Greig-Duncan contains only a fragment, without a tune.

There is another traditional set with a tune, however, which was noted in the early 1930s by James Carpenter from Bell Duncan of Aberdeenshire, a prolific singer who also supplied the only known traditional tune for The White Fisher.  This remained unpublished until 1980, when it was included in Roy Palmer's Everyman's Book of British Ballads.

THE TWA MAGICIANS

(Noted by James Carpenter from Bell Duncan of Lambhill, Inch, Aberdeenshire)

The smith he stood in his smithy door,
An' she cam' by the door,
Could hardly stand for pride.
The smith he cried:
"Bide, lassie, bide,"
An' aye he bade her bide,
"An' be a brookie smith's wife,
An' that will lay your pride."

She became a ship, a ship,
An' sailed upon the sea,
An' he became a mariner,
An' aboard o' her gaed he.
"Bide, lassie, bide,"
An' aye he bade her bide,
"An' be a brookie smith's wife,
An' that will lay your pride."

She becam' a girdle
An' he becam' a cake,
An' a' things that she did become
The smith becam' her make.
And it's bide, lassie, bide,
An' aye he bade her bide,
An' be a brookie smith's wife,
An' that'll lay your pride.

She becam' a duke, a duke,
To puddle in a peel,
An' he becam' a drake, a drake,
Tae gie the duke a dreel.
And it's bide, lassie, bide,
An' aye he bade her bide,
"An' be a brookie smith's wife,
An' that'll lay your pride.

Palmer prints staff notation for the third and fourth verses and choruses.  A midi made from these goes to the  Mudcat Midi Pages,  and can be heard meanwhile via the  South Riding Folk Network  site:

The Twa Magicians (Bell Duncan set).

Quite close relatives of this tune turn up attached to, for example, The Forester (The Knight and the Shepherd's Daughter) and Johnny Sangster.