ผลงานในปี 1973 เพิ่มเติม จากเว็ป
http://en.wikipedia.org/wiki/Timeline_of_progressive_rockArea - Arbeit Macht Frei (Italy)
Ange - Le Cimetière des arlequins (France)
Banco del Mutuo Soccorso - Io Sono Nato Libero (Italy)
Camel - "Camel" (England)
Caravan - For Girls Who Grow Plump in the Night (England)
Cyrille Verdeaux - Clearlight Symphony (France)
Henry Cow - The Henry Cow Legend (aka Leg End) (England)
Embryo - Steig Aus (Germany)
Emerson, Lake & Palmer - Brain Salad Surgery (England)
Frank Zappa & The Mothers of Invention - Over-Nite Sensation (USA)
Genesis - Genesis Live (England)
Genesis - Selling England by the Pound (England)
Gentle Giant - In a Glass House (England)
Gong - Angel's Egg (Various)
Gong - Flying Teapot (Various)
Hatfield & the North - Hatfield & the North (England)
Hawkwind - Space Ritual (England)
Jethro Tull - A Passion Play (England)
King Crimson - Larks' Tongues in Aspic (England)
Le Orme - Felona e Sorona (Italy)
Magma - Mekanik Destruktiw Kommandoh (France)
Museo Rosenbach - Zarathustra (Italy)
Nektar - Remember the Future (England)
Mike Oldfield - Tubular Bells (England)
Osanna - Palepoli (Italy)
Pink Floyd - The Dark Side of the Moon (England)
Queen - Queen
Renaissance - Ashes Are Burning (England)
Samla Mammas Manna - Måltid (Sweden)
Semiramis - Dedicato A Frazz (Italy)
Rick Wakeman - The Six Wives Of Henry VIII (England)
Wigwam - "Being" (Finland)
Yes - Yessongs (England)
Yes - Tales From Topographic Oceans (England)
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