??????????????? {??'???} Grace note Original Soundtrack
| Track | Durée | Titre | Tablature |
| 1 | 01:34 | starting the case: Rail Zeppelin | |
| 2 | 01:54 | nervous talk | |
| 3 | 02:02 | an ominous premonition | |
| 4 | 02:31 | deep in thought | |
| 5 | 03:13 | the matter is settled, anyway | |
| 6 | 02:06 | well-disciplined classrooms |