Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.5 | Darkness | ?:?? | Spirit | Feedback | Spirit | Album |
| Epic (US label founded by CBS in 1953, now owned by Sony) | EPC 64507 |
| 1.5 | Darkness | 4:48 | Spirit | Feedback | Spirit | Album |
| ||
| 1.5 | Darkness | 4:48 | Spirit | Feedback | Spirit | Album |
| Collectors’ Choice Music | CCM-421-2 |
| 2.2 | Darkness | 4:47 | Spirit | Fresh From the Time Coast: The Best of 1968–1977 | Spirit | Album + Compilation |
| Raven Records (Australian mainly reissue) | RVCD-306 |
| 5.5 | Darkness | 4:48 | Spirit | Original Album Classics | Spirit | Album + Compilation |
| Legacy (reissue division of Sony Music Entertainment) | 88697646982 |
| 5.5 | Darkness | 4:48 | Spirit | Original Album Classics | Spirit | Album + Compilation |
| Epic (US label founded by CBS in 1953, now owned by Sony), Legacy (reissue division of Sony Music Entertainment), Ode Records Inc., Sony Music (global brand, excluding JP, owned by Sony Music Entertainment) | 88875105792 |
| 3.18 | Darkness | 4:47 | Spirit | It Shall Be: Ode & Epic Recordings 1968–1972 | Spirit | Album + Compilation |
| Esoteric Recordings (a division of Cherry Red Records Ltd.) | ECLEC 52619 |
| 1.5 | Darkness | 4:48 | Spirit | Feedback | Spirit | Album |
| Epic (US label founded by CBS in 1953, now owned by Sony) | 64507 |
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