Progressive psytrance (also referred to as minimal psytrance, psyprog, or simply prog or 'minimal) is a style of psychedelic electronica developed in the early 2000s, developed as a sub-genre of psychedelic and Goa trance. Progressive psytrance is distinct from progressive trance which is more similar to progressive house. Progressive psytrance combines the elements of minimal sounding progressive electronic music and complex developments of psychedelic music. Its heritage can be traced back to the developments of minimal techno, tech, and minimal house. The style of progressive psytrance can be described as generally darker and edgier than mainstream trance. It is also slower in tempo and is more progressive than melodic psytrance. Currently, Denmark, Sweden, and Germany have created the most renowned minimalist labels. In the last couple of years Australia has added its own artists and labels to the minimalist trance scene.