https://www.kroqjingles.com/us-festival-1983-day-3-rock-day/#:~:text=The%20bands%20who%20played%20were%3B,and%20the%20Disopiles%20of%20Soul.&text=Glen%20Helen%20Regional%20Park%2C%20San,Joe%20Walsh

Sunday Bloody Sunday and New Year's Day had come out earlier that year. They sound sharp, as in New Year's Day @ 19:50.