Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.9 | reading-2 | 1:32 | 一青窈 | 一青窈CONCERT TOUR2008「Key～Talkie Doorkey」Live DVD @ NHK hall | 一青窈 | Album + Live |
| M☆Hits | COCP-35310, COCP-35311 |
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