The 5000 Spirits or the Layers of the Onion by the Incredible String Band is a 1967 psychedelic folk album that blended British folk, psychedelia, and world music influences. The album is known for its whimsical, surreal, and intricate compositions, featuring a diverse array of instruments and mystical lyrics. It marked a shift from the band’s earlier folk sound and is considered a seminal and influential work in its genre