Ondrej Valenta aka Ondrej Psyla is dj and label manager Mystical Waves Records.

He has been organizing psytrance parties since then and his DJ career began 3 years later in 2004. He started as a member of Trancedelic crew, became a founding member of Mystical Waves crew in 2004 and has been a substantial part of this group until today. His sets range from 140 bpm (melodic psy trance) through 145 bpm (mornig full-on trance) to 152bpm (night psytrance).

He lives and works in Prague. He also played in Thailand, Finland, Switzerland, Sweden, Ireland, Lithuania, Netherlands, Italy, Poland, Austria, Slovakia, Germany, England, Hungary, Belgium, Portugal, France, Romania and more to come.

He acts as a booking manager for Mystical Waves DJs and Live Acts.