| # | Title | Length |
|---|
| 1 | Keep Yourself Alive (De Lane Lea demo, December 1971)- recording engineer:
- Louis Austen (in 1971-12)
- executive producer:
- Brian May and Roger Taylor
- producer:
- Queen
- mixer:
- Louis Austen
- bass guitar:
- John Deacon (in 1971-12)
- drums (drum set):
- Roger Taylor (in 1971-12)
- electric guitar:
- Brian May (in 1971-12)
- vocals:
- Freddie Mercury (in 1971-12)
- phonographic copyright (℗) by:
- Queen Productions Ltd.
- recorded at:
- De Lane Lea Studios in Soho, Westminster, London, England, United Kingdom (in 1971-12)
- produced at:
- Trident Studios in Soho, Westminster, London, England, United Kingdom
- recording of:
- Keep Yourself Alive (in 1971-12)
- lyricist and composer:
- Brian May
- publisher:
- B. Feldman & Co. Ltd., EMI Music Publishing Ltd., Queen Music Ltd., イーエムアイ音楽出版 ソニー事業部 (until 2021-06-30) and ソニー・ミュージックパブリッシング EMI外国事業部 (from 2021-07-01 to present)
| 3:52 |
| 2 | The Night Comes Down (De Lane Lea demo, December 1971) | 4:25 |
| 3 | Great King Rat (De Lane Lea demo, December 1971) | 6:09 |
| 4 | Jesus (De Lane Lea demo, December 1971) | 5:07 |
| 5 | Liar (De Lane Lea demo, December 1971) | 7:55 |
| 6 | Mad the Swine (June 1972)- executive producer:
- Brian May and Roger Taylor
- producer:
- John Anthony, Roy Thomas Baker and Queen
- mixer:
- David Richards
- bass guitar:
- John Deacon (in 1972-06)
- drums (drum set):
- Roger Taylor (in 1972-06)
- electric guitar:
- Brian May (in 1972-06)
- vocals:
- Freddie Mercury (in 1972-06)
- phonographic copyright (℗) by:
- Queen Productions Ltd.
- recorded at:
- De Lane Lea Studios in Soho, Westminster, London, England, United Kingdom (in 1971-06)
- produced at:
- Trident Studios in Soho, Westminster, London, England, United Kingdom
- recording of:
- Mad the Swine (in 1972-06)
- writer:
- Brian May, Freddie Mercury and Roger Taylor
- publisher:
- Queen Music Ltd., イーエムアイ音楽出版 ソニー事業部 (until 2021-06-30) and ソニー・ミュージックパブリッシング EMI外国事業部 (from 2021-07-01 to present)
| 3:23 |
