It's highly probable that this happened in Seattle at Kaye Smith studio on 12/13/77: the band played the Center Coliseum the same day, and there's no documentation that the track was ever worked on at MIU, or that Dennis was ever in Iowa, although he
may have drummed on an early session there for
"She's Got Rhythm". The instrumental track was recorded at Brother in the fall of 1976 and sweetened at Wally Heider's 2/22/78.I guess you mean the instrumental track to "My Diane"? Because at first reading I thought you were referring to the instrumental track of "She's Got Rhythm" with the part I highlighted. Just to see if I now got it right.