In the Blue Funnel Line (the Welsh navy) we used to sing "Pack my bag, pack my grip" with similar verses to the Clan Line, except that we sang the name of the various ships at the end of the verse -
"F*** the mate, the old man too
They both know what they can do
Bye bye Perseus".
We used to sing songs in the halfdeck (the midshipmen's and cadets quarters). One midshipman sang a blues:-
I came to sea 'cause I didn't have anything to lose,
But an old sea dog he quickly changed my views.
He said listen to me son and I'll tell you why
I've seen grown men break down and cry
Just like the sea moves to the sky, they're blue.
I've got those black-top Blue Funnel blues.