Lyrics: [none]
Music: Mark Levine
An instrumental played a few times by Jerry Garcia with Merl Saunders and the band Reconstruction in 1979.
It was first recorded by Mongo Santamaria in 1969 as "Sheila" on the album "Afro American Latin".
It often appears in setlists as "Lyinda", apparently becuae that was the title Betty Cantor-Jackson wrote on the tape boxes.
(thanks to Joe Jupile for tracking down the orgins/author of the song).