I am glad that you liked my idea! A person who would take a choir to perform at a bluegrass festival has to be, well, "inspired" is the polite word;-) But you are doing a wonderful thing--and I wish I could be there to hear you-- I am a composer of sorts, with a great fondness for popular idioms, and worked with a folk choral ensemble a number of years ago--if you need any more ideas, just ask--