4:06 Mark Otten - So Serene (Original Mix) (ARMD1021) 10:00 Mark Otten - So Serene (Original Mix) 10:04 Mark Otten - So Serene (Hawk Remix) 6:11 Ozirus - So Serene (Original Mix)-2018-UNRELEASED 10:04 Mark Otten - So Serene (Hawk Remix) 9:04 Mark Otten - So Serene (Magdelayna Sunset Mix) [2007] 8:21 Mark Otten - So Serene Menno de Jong Fierce Dub 10:46 Mark Otten - Tranquility (Markus Schulz Coldharbour Mix) 7:57 Aalson - Serene (SINNERS14) 7:04 ReLocate feat. Menno de Jong - Spirit 9:09 Varian - Endless Desire (Mark Otten's Energetic Remix) 4:33 Maurice Deebank - So Serene 7:20 Magdelayna - Rings Of Saturn 2019 8:21 Mark Otten – So Serene (Menno de Jong Heading South Dub Mix) (Progressive Trance) 8:23 Mark Otten - So Serene 7:58 Mark Otten - So Serene [ASOT] 6:08 Audiosurf - Mark Otten - So Serene (Menno de Jong Fierce dub) 5:47 Mark Otten - So Serene (Vocador Rmx)