Effective period / Period of releases: 1980 - 2003

Members: Don Preston, Roy Estrada, Bunk Gardner, Jimmy Carl Black, Buzz Gardner, Chris Garcia (2)

An American band, oriented to the works of Frank Zappa, consisting of former MOI (The Mothers) members: Don Preston; Jimmy Carl Black; Bunk Gardner; Ray Collins; Chris Garcia (2) and others.

Effectively, the group was born of the frustrations of the artists needing some control over their talents, outside of the directions of their mentor Zappa. They did, however, do covers of FZ work and the inclusion of a version of "Deseri" on their album "Looking Up Granny's Dress" became a sensitive subject in the Zappa domain. The track includes guitars by FZ, his pal Ronnie Williams and Paul Buff (who also feature on Frank Zappa - The Lost Episodes).

The potential rift healed and Grandmothers members later reappeared on Zappa works.