Merfolk's Lullaby

I was a lucky sailor, as free as a tropical breeze. But your love clapped me in irons, and I can't reach the keys! Now my heart is in your brig, and I know it's not the only lodger. But since you cast away your love, I'm no longer a Jolly Rodger. I'd keep an even keel, but it's a dirty deal! There's no appeal! And now I must walk this plank of love! Darling, please be mine. Only you can make me whole. Your love is the lime. For the scurvy in my soul. I used to dream of sunken treasure, but now my only wish is... With you tonight, instead of sleeping with the fishes.