Andy agreed to do the showcase and he has every right to determine the theme of the showcase. I have had the good fortune to hear Andy perform several times and on every occasion the music he did was over 50 years old. I have also been to workshops or showcases where themes were train songs, protest songs, banned songs, gospel songs, singer-songwriters, and any number of others. I am a little surprised at some comments in this thread. I did not think some of these folk were that narrow minded. At Folk Alliance and other festivals showcases have themes. People can choose to attend or not to attend. I would guess there are other showcases at the same time as Andy's.