In/Spectre Original Soundtrack
AlbumTracklist 46:30
| 1 | Fear | 2:37 | |
| 2 | Destined encounter | 3:09 | |
| 3 | Ayakashi | 3:12 | |
| 4 | Demon | 3:24 | |
| 5 | A Man who Sees the Future | 2:54 | |
| 6 | Kotoko and Kuro | 2:50 | |
| 7 | Kotoko and Ayakashi | 1:46 | |
| 8 | In/Spectre -Main Theme- | 3:15 | |
| 9 | Bake-danuki | 2:09 | |
| 10 | Awakening | 1:55 | |
| 11 | Mysterious Case | 1:56 | |
| 12 | Kotoko's Reasoning | 2:39 | |
| 13 | Ochimusha | 1:51 | |
| 14 | Kotoko and Saki | 1:52 | |
| 15 | Past | 4:21 | |
| 16 | The Unseen | 2:50 | |
| 17 | Next Episode Preview | 0:15 | |
| 18 | One Eye, One Legged Girl | 3:35 |