All tracks arranged by Emerson, Lake & Palmer. All lyrics by Greg Lake.

Side one
No. Title Writer(s) Length
1. "The Endless Enigma (Part One)" Keith Emerson, Greg Lake 6:41
2. "Fugue" Emerson 1:56
3. "The Endless Enigma (Part Two)" Emerson, Lake 2:03
4. "From the Beginning" Lake 4:16
5. "The Sheriff" Emerson, Lake 3:22
6. "Hoedown" Aaron Copland, arr. Emerson, Lake, Carl Palmer 3:47
Side two
No. Title Writer(s) Length
1. "Trilogy" Emerson, Lake 8:54
2. "Living Sin" Emerson, Lake, Palmer 3:13
3. "Abaddon's Bolero" Emerson 8:08