The shows were originally supposed to be a the Kaleidoscope on Vine Street move at the last minute to the Embassy Ballroom in the Ambassador Hotel.

Corry thinks it might have been a record release party on the 17th as well, but LIA notes there is really no evidence.

lostlivedead: April 14-15, 17, 1967 The Banana Grove, Ambassador Hotel, Los Angeles, CA: Jefferson Airplane/Grateful Dead/Canned Heat (Might Have Been)

deadessays: Deadbase Corrections

deadsources: April 14-16, 1967: Ambassador Hotel, Los Angeles Diehl, Digby. 1967. Kaleidoscope Opens at Embassy Room. Los Angeles Times, April 18, 1967, p. D10;

deadessays: 1967 Show List

hooterollin: Grateful Dead Performance List January-June 1967