I never heard anybody who could better Brian Watson [Prudhoe, Northumberland] for sheer volume.He was a shanty-man in the main [pun not intended!], but could do credit to many another genre. I would point out to Martin[above], when it comes to shanties, we are dealing with worksongs, which were used by seamen to co-ordinate various "team-tasks" aboard ship ---e.g. pumping shanties, capstan shanties--- and were almost certainly delivered by shouting as much as by melodic singing.