Happy to see chanty filed under a wider genre, as long as it retains its own autonomy for what we've already described. Basically I'm not interested in what modern day practitioners and commercial interests use it for. Its usage aboard merchant ships under certain conditions c1830 to c1920s is well documented and that's all I'm primarily interested in.
Having said that I'm glad someone like you is looking at a wider historical picture, and what the equivalents were in RN terms. Anyone vaguely interested in chanties will have a good idea of what they were and what they were used for.

I do advise you include explanations/translations with your posts as they mean very little to the majority of people on here.