I did a 90 minute 'set' last Saturday at the campgrounds I was staying at. Although I was facing into the woods, people walking the access road would come into the site and talk to me and compliment my playing. The next day some kids from the next site walked by and said 'thanks for the concert'. I had another 15-30 minutes of songs I could have done, but didn't want to 'disturb the peace' any later. I can play many more songs, but its remembering the lyrics that's the tough part.