We will miss his sharply dry humor, wry smiles and brilliant insights, they wrote.

There are no words to fully express the impact he made with his music and his incredible mind.

Their letter ended with a message for Garcia: P.S.

Garcia Family Pays Tribute to Phil Lesh: ‘Say Hi to Jerry’

Jerry Garcia and Phil Lesh of the Grateful Dead on the corner of Ashbury and Haight streets in San Francisco, CA.Ted Streshinsky/CORBIS/Corbis via Getty Images

say hi to Jerry.

Garcia invited Lesh to join the band on bass guitar, an instrument he had never played.

May your blessed cosmic cerebral beats play on.