What is the high pitched instrument in the grateful dead song unbroken chain?

The high-pitched instrument featured prominently in The Grateful Dead song "Unbroken Chain" is the violin, played by Jerry Garcia's longtime collaborator, Vassar Clements. This instrument adds a distinctive, melodic quality to the song, enhancing its emotional depth. The combination of the violin with Garcia's vocals and the band's instrumentation creates a unique atmosphere that characterizes the track.