Musicians
Jerry Garcia
- electric guitar (lead), vocals
Bill Kreutzmann
- drums, perc
Bob Weir
- electric guitar (rhythm), vocals
Donna Jean Godchaux
- vocals
Keith Godchaux
- keyboards
Mickey Hart
- drums, perc
Phil Lesh
- electric bass
NedBase: Annotated Nedbase 1970 - 1975: Ned plays on "Swing Warm Ups" and other jams but not on the "E-A-C" jam. Garcia's presence here noted in comments.
“Swing Warm-Ups” is the only tape (besides the S.N.A.C.K. rehearsals, 3/17, and 4/17)
where Ned Lagin can be heard audibly with the rest of the Dead.
ref: Steve Brown Papers: Calendar, 1974-1976, Grateful Dead Archive, Special Collections, UC Santa Cruz, MS.338, box 1, folder 4.