Placeholder date. As reported in Golden Road (see references), in Fall 1989 Garcia, Wasserman and Edie Brickell did a first trio session at Jerry's house, where he played the grand piano and Edie came up with "Zillionaire". Other sessions took place at Club Front, for which we have also created placeholder entries.
Ref: Rob Wasserman, Trios.
ref: "Deadline," Golden Road no. 22 (Spring 1990), pp. 9-10.