Artists such as PINK FLOYD will not be found there though, as their career extended well beyond these first, formative years. Amongst these pioneering outfits are acts like THE BEATLES, JEFFERSON AIRPLANE AND VANILLA FUDGE. The pioneering psychedelic progressive rock bands to be found at will in most cases be found in the Proto-Prog section of the site. The boundary dividing the 'Experimental' and 'Progressive' classification is a thin and at times contested one for this era. Acid rock groups like THE JIMI HENDRIX EXPERIENCE and CREAM stand as descriptive and popular examples of the path from psychedelic sunshine pop towards a more aggressive and distinct rock expression, in particular showcased in their improvised live performances. Experimenting with new studio technology, electronically altering instruments and voices, was a part of this altered approach as well. Along them the principles of free-form jazz were included to the psychedelic sound, emphasising spontaneous emotions over calculated and estimated compositional constructions. Just as important was the incorporation of elements from Indian and Eastern music. These groups slowly started to abandon the concise verse-chorus-verse patterns of rock & roll, and moved towards fluid, free-form oriented song structures. During that time the British Invasion and folk-rock bands began to expand the sonic possibilities of their music. Progressive rock music has its roots in the mid 1960's psychedelic cultural phenomena. Psychedelic/Space Rock definition Psychedelic Progressive Rock

Change tempo of song in sonar 8.5