Then we had a mouth-organ solo or two, which naturally led on to songs. My turn came. I struck up the first verse of a sailor chantey as possessing at least the interest of novelty. Oh once we were a-sailing, a-sailing were we; Blow high, blow low, what care we; And we were a-sailing to see what we could see, Down on the coast of the High Barbaree.
Source: wiktionary