Not uncommon: you listen and listen to these old recordings and can make out very little. Then suddenly the most unintelligible parts begin to make sense.

The second stanza of Scott's "Rosabella" now sound like this:

For the Rosabella beat the [?Kinoda]
The [?Kinoda] beat Conductor
But the Boston Times says she beat them all
Sailin' out from the old North River.

The Boston Times was a real paper, founded in 1836. The North River in Massachusetts, not far fromn Boston, was an important 18th and 19th century shipbuilding center. A bark "Rosabella" is mentioned frequently in newspapers between about 1837 and 1846. If the song is really that old it might help to explain why it was not collected more frequently.

I can't guess (yet) at what "Kinoda" might be, especially if, as it seems, it's the name of a ship. (Unless it really is "Kinoda" or "Kynoda" or something.)