| ID | Interpret | Skladba | Album | |
| 151. | Inna Rude Mood | Bluesland radio April 2003 - Inna Rude Mood | Bluesland radio April 2003 - Full Band |  |
| 152. | CKUT 90.3 FM Montreal | Future Classic Radio - April 25 2010 Guru Tribute | | |
| 153. | Inna Rude Mood | Bluesland radio April 2003 - Leo Shoemaker and Band saying goodbye | Bluesland radio April 2003 - Full Band | |
| 154. | Chicago Public Radio | Chicago Public Radio City Room - April 2006 | | |
| 155. | Chicago Public Radio | Chicago Public Radio City Room - April 2006 | | |
| 156. | Mary Nichols | iHHF.net - FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah #151 тАУ April 22, 2009 | FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah | |
| 157. | Mary Nichols | iHHF.net - FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah #152 тАУ April 29, 2009 | FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah | |
| 158. | Doug | Blunt Beats Radio Destination Midnight 30th April 2008 | Blunt Beats Radio | |
| 159. | Mary Nichols | iHHF.net - FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah #150тАУ April 15, 2009 | FuseBox Radio Broadcast w/ DJ Fusion & Jon Judah | |
| 160. | The Daily Journal Podcast | 177 - Kankakee entertainer Tim Kilbride visits Chicago radio show host Jonathon Brandmeier's program on April 17 | Daily Journal | |
| 161. | Haggard | The Observer | Eppur Si Muove |   |
| 162. | Lo;Rise | Observer | Defected Prsnt Charles Webster | |
| 163. | Haggard | The Observer | 2004 - Eppur Si Muove | |
| 164. | Brazos | The Observer | WOXY.com Lounge Acts: SXSW 2009 | |
| 165. | RED MARTIAN | OBSERVER | Little Hopes 7 inch 2000 | |
| 166. | Mark & Lard | 2003/04/18 - Mark & Lard On Radio 1 - Friday 18th April 2003 - Edited | Mark & Lard - Afternoon Shows | |
| 167. | Frank Molder | Space Observer | Come With Me | |
| 168. | Frank Molder | Space Observer | Come With Me | |
| 169. | Iszi Lawrence & Simon Dunn | Independent vs Observer | Sundays Supplement | |
| 170. | mixed by aaa | eta mix - tribute to international observer | myspace.com/aaazzi | |
| 171. | The Observer | The Observer Food Monthly Podcast 1 | The Observer Food Monthly | |
| 172. | Albert Goldbarth | Poet Spouts, Observer Thoughts | | |
| 173. | Cephalic Carnage | Observer to the Obliteration of Planet Earth | Exploiting Dysfunction | |
| 174. | Cephalic Carnage | Observer to the Obliteration of Planet Earth | Exploiting Dysfunction | |
| 175. | Albert Goldbarth | Poet Spouts, Observer Thoughts | | |
| 176. | VPRO | Noorderlicht Radio 2008 22 april 2008 | | |
| 177. | Brother Scott Nesbitt | Wrestling with God | | |
| 178. | Church of the Cross | Wrestling with God | Ordination of Ben Rey | |
| 179. | Day Action Band | Wrestling | Awesome Songs | |
| 180. | Messian Dread | Theme Of The Babylon Observer VERSIONIST PRE-RELEASE FORMAT | Hardcore Dub Sessions | |
