RJM: "it is possible he meant capstan shanties were slower by nature"

Is that your interpretation, which you will support with evidence? This is quid pro quo, so please make sure we have the quid.

Gibb interpretation:

Lloyd spoke bullshit about how the speed and style of his "Wild Goose Shanty" was, as a representative of shanties as a class. It's bullshit because the song did not *exist* as such until Lloyd himself created it, at which time it was he would decided on what the speed and style would be. Lloyd thus postures as someone delivering some knowledge about shanties that is supported by evidence from the genre's documentation, which in this case is "Wild Goose Shanty." The evidence, however, has been planted, is manufactured. Lloyd does this so smoothly, hiding the dishonesty by misdirection toward a truth-y remark ("how funny it would be to sing shanties too fast!"), that it resembles a psychopath's behavior. (How's that taste?)

Dick interpretation:

???
[Capstan shanties were slower than what?] [He's making a reference to capstan shanties even though he does not single out Wild Goose Shanty as representative of capstan shanties?]