| ID | Interpret | Skladba | Album | |
| 151. | ERH | Atmosphere 4 | Portal: Prelude Soundtrack |  |
| 152. | ERH | Atmosphere 1 | Portal: Prelude Soundtrack | |
| 153. | ERH | Atmosphere 2 | Portal: Prelude Soundtrack | |
| 154. | ERH | Swell Pad | Portal: Prelude Soundtrack | |
| 155. | ERH | Atmosphere 1 | Portal: Prelude Soundtrack | |
| 156. | ERH | Discovering GlaDOS | Portal: Prelude Soundtrack | |
| 157. | ERH | ABS O5 120 Harp | Portal: Prelude Soundtrack | |
| 158. | The Hamster Alliance | System Error | Portal: Prelude Soundtrack | |
| 159. | The Hamster Alliance | Full Time Employee | Portal: Prelude Soundtrack |  |
| 160. | The Hamster Alliance | Endless Chamber | Portal: Prelude Soundtrack | |
| 161. | The Hamster Alliance | Where am I? | Portal: Prelude Soundtrack | |
| 162. | The Hamster Alliance | Contemplation in Silence | Portal: Prelude Soundtrack | |
| 163. | The Hamster Alliance | Live Fire | Portal: Prelude Soundtrack | |
| 164. | The Hamster Alliance | Required Test Protocol | Portal: Prelude Soundtrack | |
| 165. | The Hamster Alliance | The Cake is a Lie! | Portal: Prelude Soundtrack | |
| 166. | In The Nursery | Patter [PREVIEW] | Prelude 1983-1985 | |
| 167. | ERH | ABS O5 120 Harp | Portal: Prelude Soundtrack | |
| 168. | Charlotte Church | Bridge over Troubled Water | Prelude...The Best of Charlotte Church |  |
| 169. | Charlotte Church | It's the Heart That Matters Most | Prelude...The Best of Charlotte Church | |
| 170. | ERH | Strings SBRX2 45 | Portal: Prelude Soundtrack | |
| 171. | Charlotte Church | All Love Can Be | Prelude - The Best of Charlotte Church | |
| 172. | ERH | Discovering GlaDOS | Portal: Prelude Soundtrack | |
| 173. | Joanne Brown LeDoux | The Love God Has for Me | Prelude september 23 2007 | |
| 174. | ERH | C2R B2 1B Strings | Portal: Prelude Soundtrack | |
| 175. | In The Nursery | Remain [PREVIEW] | Prelude 1983-1985 | |
| 176. | In The Nursery | Execution's Romance [PREVIEW[ | Prelude 1983-1985 | |
| 177. | In The Nursery | Patter [PREVIEW] | Prelude 1983-1985 | |
| 178. | In The Nursery | E984 [PREVIEW] | Prelude 1983-1985 | |
| 179. | In The Nursery | A to I [PREVIEW] | Prelude 1983-1985 | |
| 180. | In The Nursery | Stone Souls [PREVIEW] | Prelude 1983-1985 | |
