Progression consists of Daniel Wanrooy and Robin van de Weil. They are also known as Inbox and Odyssee. In this Progression alias, they have together released four singles: Ocean Green / Purify, Indeep Sounds / Sands Of Time, Superstitious / Red Alert (on In Trance We Trust), and Technophobia / Loving Memories (on Magik Muzik).

Progression on Last.fm.