Tracklist
| Centaur | |
| 1 | Obsidian |
| 2 | Jasper |
| 3 | Heliotrope |
| 4 | Sapphire |
| X174 | |
| 5 | ΦX174 |
| Exterior | |
| 6 | I |
| 7 | II |
| Difference Engine | |
| 8 | I |
| 9 | II |
| 10 | III |
Credits
- Djembe – Ron Colbers (tracks: 6, 7)
- Double Bass, Bass Guitar – Robert Davidson
- Piano – Kylie Davidson
- Soprano Saxophone, Alto Saxophone – John Babbage
- Viola – Bernard Hoey
- Violin – Christa Powell
- Written-By – John Babbage (tracks: 5, 8 to 10), Lynette Lancini (tracks: 1 to 4), Robert Davidson (tracks: 6, 7)
Barcode and Other Identifiers
- Barcode: 9 319505 824853
