This is interesting as I had a dilemma when compiling English Concertina International as I had a the very thing that Doc John is referring to. A Folk Song sung in an operatic voice. Lovely singing and beautiful accompaniment. From the test samples I put out this song came out as the most loved and alternatively the most hated of the collection. One of my jobs is to ensure that where possible I do not set someone up for criticism, but at the same time try to create an interesting varied selection.It was decided not to include it as I thought that certainly the UK Folk listeners would not enjoy it. From the general level of replies on this thread I did the right thing.
Al