Tracklist
| The Challenge (Part One) | 7:53 |
| Linkage | 4:13 |
| The Tides (They Turn) | 11:23 |
| Obsidian | 6:48 |
| The Challenge (Part Two) | 7:35 |
| The Key (Version) | 6:21 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| KK065 | PWOG* | Ov Biospheres And Sacred Grooves: A Document Ov New Edge Folk Classics (LP, Album) | KK Records | KK065 | Belgium | 1992 |
| KK065CD, 390.1065.2.41 | PWOG* | Ov Biospheres And Sacred Grooves (A Document Ov New Edge Folk Classics) (CD, Album) | KK Records, KK Records | KK065CD, 390.1065.2.41 | Belgium | 1992 |
| KK065CD, 390.1065.2.41 | PWOG* | Ov Biospheres And Sacred Grooves - A Document Ov New Edge Folk Classics (CD, Album) | KK Records, KK Records | KK065CD, 390.1065.2.41 | Belgium | 1992 |
| KK065CD | Psychick Warriors Ov Gaia | Ov Biospheres And Sacred Grooves: A Document Ov New Edge Folk Classics (CD, Album) | KK Records, Cargo Records | KK065CD | US | 1992 |
| KK065CD, 390.1065.2.41 | PWOG* | Ov Biospheres And Sacred Grooves: A Document Ov New Edge Folk Classics (CD, Album, Dig) | KK Records, KK Records | KK065CD, 390.1065.2.41 | Belgium | 1992 |
| 7 72803-2 | Psychick Warriors Ov Gaia | Ov Biospheres And Sacred Grooves: A Document Ov New Edge Folk Classics (CD, Album, RE) | Restless Records | 7 72803-2 | US | 1993 |
| KK065CD, 390.1065.2.41 | PWOG* | Ov Biospheres And Sacred Grooves: A Document Ov New Edge Folk Classics (CD, Album, RE) | KK Records, KK Records | KK065CD, 390.1065.2.41 | Belgium | Unknown |

