1 Jethro Tull:

Led by Scot Ian Anderson and recognised as one of the leading prog rock bands.

2 Yes: Rick Wakeman played with Yes, who were in the vanguard of the movement.

3 Pink Floyd: Arguably the most successful band to dabble in progressive and psychedelic music.

4 King Crimson: London band led by the charismatic Robert Fripp.

5 Emerson Lake and Palmer: ELP, as they were known, were prog rock's first supergroup.

6 Genesis: The band that spawned Phil Collins and Peter Gabriel and one of the most successful ever.

7 Procol Harum: English band best known for the smash hit Whiter Shade of Pale.

8 Moody Blues: Days of Future Passed was the best known album of the band whose members included Justin Hayward.

9 Van Der Graaf Generator: Well respected prog rock band without achieving commercial success.

10 Focus: Dutch band most famous for hits Hocus Pocus and Sylvia.