This was definitely in Millersville PA, on either May 25 or 26, at the Pucillo gym of Millersville State College. Not in Lititz, not at 'Tait Towers' or at Clair Bros. soundstage. See link.

The song list is based on the only known recording of a 1976 rehearsal, taped on May 25 or May 26. See Downloads.