@SEA-K Hey Moin ! Oh yes, there´s a big Difference between Trance and Psytrance. Trance is in the most cases a "Nice-World-Music". With this Chords and always the same Harmonies and Melodies.
Psytrance has a different Kick and Base, the Melodies can vary between India Style and all other Styles in the World. Especially psychedelic Melodies. No there are really BIG Differences between Trance and Psytrance.