cxl; Program Council moved heaven and earth to get his nailed down, then GD decided they wanted Sunday 7/23, which was a non-starter. It looks like they had Sandstone in Bonner Springs for Fri-Sat, which also ended up canceled. So Sunday would have made sense ...
ref: "Dead concert at CU now seems unlikely," Dupree's Diamond News no. 12 (July 1989), 34.