Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 2.1 | Fog | 2:24 | Spirit | Time Circle | Spirit | Album + Compilation |
| ||
| 2.1 | Fog | 2:24 | Spirit | Time Circle (Matrix / Runout (CD 1): 1-02-471268-10 12 A2 DADC AUSTRIA; Matrix / Runout (CD 2): 2-02-471268-10 13 A1 DADC AUSTRIA) | Spirit | Album + Compilation |
| Epic (US label founded by CBS in 1953, now owned by Sony) | 471268 2 |
| 1.22 | Fog | 2:23 | Spirit | Time Circle (1968–1972) | Spirit | Album + Compilation |
| Yellow Label | SPV 42402 CD |
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