Derek Treffry
作曲者
作品リスト
| 2016 | Border Security: America's Front Line · as Composer |
| 2014 | Mighty Cruise Ships · as Composer |
| 2014 | MegaSpeed · as Composer |
| 2014 | Manufactured · as Composer |
| 2012 | Border Security: Canada's Front Line · as Composer |
| 2007 | Disaster DIY · as Composer |