Zappa liked the _Blow Boys Blow_ album. It sounds a bit like an exaggeration to suggest that he was "into chanties" or even that he was "listening to AL Lloyd." I think it just boils down to the fact that he discovered that particular album, by whatever chance, and loved it.

In college, I listened to lots of Zappa *and*, by whatever chance, I also discovered Blow Boys Blow. Not a weird combo, I don't think! Anyway, without making too much of it, I don't think Blow Boys Blow equates to chanties....or...it's not so surprising that one would listen to BBB as it would be if a person were "really" into chanties, from other sources.