Had never heard of a guitar pull so I searched. In case anybody is interested, here's what I found.
“A guitar-pull is a unique concert experience in which several artists are on stage at the same time telling stories, sharing laughs and playing songs – and it’s all acoustic. The unpredictable raw style of the show makes it about as pure of a country music experience as there is. There is no set list; no exploding scoreboards and no telling which artists will sing any given song. It’s amazing. BTW: We researched how it became known as a guitar-pull. Apparently in the early days of country music, there may only have been one guitar at the show and one performer would have to pull it away from another to get any time. I assure you …they all bring plenty of guitars!”