That's not like you Al! I was more than pleased to receive advice and help from established singers when I started. Roy Harris and Peter Bellamy took ages advising me, as did Martin Carthy. He showed me how to sing a song by reading and singing the tune from the page. It took me ages to learn, but it stood me in very good stead. No need for a musical instrument. Not one of them was snooty and not one of them dictated.
In respect of singing, as we would speak, Grainger addressed this in the 1908 FSJ, and referred to musical adaptations made by Traditional singers to suit dialect. ( Can't find it? Don't own the journal? Ask, and you shall receive.)