Albums
- 1966 – Dokumentation 1 (Elektronmusikstudion)
- 1967 – MUMS (Musik under miljoner stjärnor)
- 1968 – Elektronisk musik (with Leo Nilson)
- 1969 – Tellus. Fågel Blå
- 1969 – Svit för elektroniskt dragspel. Energy for biological computer
- 1970 – Erik XIV och Ristningar
- 1970 – Ölskog
- 1971 – Gustav III. Nattmara (Nightmare)
- 1972 – Fadervår (Ourfather)
- 1973 – Strömkarlen: Nordisk natursymfoni nr 1 (The Water Sprite: Nordic Nature Symphony No. 1)
- 1973 – Skräck och skratt, resor i okända världar
- 1975 – Shangri-La
- 1975 – Johannes och huldran: Nordisk natursymfoni nr 2 (Johannes and the Lady of the Woods: Nordic Nature Symphony No. 2)
- 1976 – Cosmic Love
- 1977 – Ralph Lundsten's Universe
- 1978 – Discophrenia
- 1979 – Alpha Ralpha Boulevard
- 1980 – Paradissymfonin (Paradise Symphony)
- 1981 – En midvintersaga: Nordisk natursymfoni nr 3 (A Midwinter Saga: Nordic Nature Symphony No. 3)
- 1982 – The New Age
- 1983 – En sommarsaga: Nordisk natursymfoni nr 4 (A Summer Saga: Nordic Nature Symphony No. 4)/Pop Age
- 1984 – Trolltagen: Nordisk natursymfoni nr 5 (Bewitched: Nordic Nature Symphony No. 5)/Dreamscape
- 1985 – Välkommen (contains The Ages of Man)
- 1986 – Fantasia by Starlight – 星夜幻想 (CD/LP/cassette published in Japan)
- 1986 – The Dream Master
- 1990 – Johannes och huldran (Max von Sydow reads Gustav Sandgren's story "Johannes och huldran", accompanied by Lundstens music)
- 1992 – Drömmarnas landskap: Nordisk natursymfoni nr 6 (Landscape of Dreams: Nordic Nature Symphony No. 6)
- 1993 – Nordic Light
- 1994 – The Joy of Being
- 1995 – In Time and Space
- 1996 – Inspiration (EMI Classic)
- 1996 – Årstiderna: Nordisk natursymfoni nr 7 (The Seasons: Nordic Nature Symphony No. 7)
- 2002 – En själens vagabond (A Vagabond of the Soul)
- 2004 – På drömda stigar (Pathways of the Mind)
- 2005 – Like the wind my longing – Classic pearls 1972–2004 by Ralph Lundsten
- 2007 – Ut i vida världen (Out in the Wide World: Symphonia Linnæi, Out in the Wide World, In the early Days of Summer, Song of the Mermaids, A Summer Saga (first performance))
- 2007 – Lovetopia
- 2008 – Electronic Music from the 60s and 70s (a boxed set comprising 4 previously released CDs)
- 2008 - Dance in the Endless Night
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