Hans-Joachim Roedelius (born 26 October 1934) is a German electronic musician and composer, best known as a co-founder of the influential '

kosmische Krautrock (also called , German for ) is a broad genre of experimental rock that developed in West Germany in the late 1960s and early 1970s among artists who blended elements of psychedelic rock, avant-garde composition, and electronic music, ...

' groups

Cluster may refer to: Science and technology Astronomy * Cluster (spacecraft), constellation of four European Space Agency spacecraft * Asteroid cluster, a small asteroid family * Cluster II (spacecraft), a European Space Agency mission to study t ...

and Harmonia. He also performed in the ambient jazz trio

Aquarello Aquarello was a musical group which blended ambient music and jazz. The trio included keyboardist Hans-Joachim Roedelius, based in Austria, and two Italian musicians, multi-instrumentalist Fabio Capanni, and saxophonist Nicola Alesini. They w ...

, and released several solo studio albums.

Biography

Early life

Roedelius was born on 26 October 1934 in Berlin in the family of a dentist. He was an unwilling member of the German Youngsters in the Hitler Youth, membership being mandatory for all boys from the age of ten, and appeared in several propaganda films (''

Faded Melody ''Faded Melody'' (german: Verklungene Melodie) is a 1938 German drama film directed by Viktor Tourjansky and starring Brigitte Horney, Willy Birgel and Carl Raddatz.Hake p. 247The film was made by Germany's largest studio of the era UFA. It was s ...

'' by Viktor Tourjansky in 1938 ; ''

Riding for Germany ''Riding for Germany'' (german: Reitet für Deutschland) is a 1941 German drama film directed by Arthur Maria Rabenalt and starring Willy Birgel, Gertrud Eysoldt and Gerhild Weber. A German cavalry officer, badly injured during the First World Wa ...

'' by Arthur Maria Rabenalt in 1941). Roedelius and his mother Gertrud were evacuated from Berlin to a small hamlet in

East Prussia East Prussia ; german: Ostpreißen, label=Low Prussian; pl, Prusy Wschodnie; lt, Rytų Prūsija was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 187 ...

. In his book ''Future Days: Krautrock and the Building of Modern Germany'', David Stubbs writes that "the aftermath of the war was most difficult for the Roedelius family" who didn't have "enough to live on and just a bit too much to die on". He served two years in prison after the war when he attempted to defect from East Germany. Before managing to escape over the border into West Berlin in 1961, he had worked as a physical therapist and masseur. Soon thereafter he gave up his day job to pursue a career in music.

Kluster, Cluster and Harmonia

In 1968 Roedelius co-founded the music commune known as "Human Being" and co-formed Zodiak Free Arts Lab, the center of Berlin's Underground Culture at the time, with conceptual artist

Conrad Schnitzler Conrad "Conny" Schnitzler (17 March 1937 – 4 August 2011) was a prolific German experimental musician associated with West Germany's 1970s krautrock movement. A co-founder of West Berlin's Zodiak Free Arts Lab, he was an early member of Tangeri ...

. He met Dieter Moebius at the Zodiak. In 1969 Roedelius, Schnitzler and Moebius formed Kluster. In 1971 Schnitzler left the group to start a long-running solo career and Moebius and Roedelius anglicised the band's name to ''Cluster''. They signed first to Philips then to Brain. In 1973 Roedelius and Moebius worked with Neu! guitarist Michael Rother under the name of ''Harmonia''. ''

Musik Von Harmonia ''Musik von Harmonia'' is the debut album from the influential German krautrock group Harmonia, released in January 1974 by Brain Records. Formed by the addition of Neu! guitarist Michael Rother to Cluster (the duo of Hans-Joachim Roedelius and Die ...

'' was released on the back of a huge publicity campaign by Brain. Harmonia released one further album, 1975's '' Deluxe''. Rother also co-produced the 1974 Cluster album '' Zuckerzeit''. British musician

Brian Eno Brian Peter George St John le Baptiste de la Salle Eno (; born Brian Peter George Eno, 15 May 1948) is a British musician, composer, record producer and visual artist best known for his contributions to ambient music and work in rock, pop an ...

, a fan of both Cluster and Harmonia, joined them for several jams, the result of which was released in 1997 as ''

Tracks and Traces ''Tracks and Traces'' is a collaborative album by German kosmische supergroup Harmonia (featuring Neu! guitarist Michael Rother and Cluster members Hans-Joachim Roedelius and Dieter Moebius) and British musician Brian Eno, initially credited to Har ...

''. Rother left Harmonia to pursue his solo career and Cluster returned to the studio to record '' Sowiesoso'' which was released on Sky Records. Brian Eno later worked on two albums with Cluster: 1977's ''

Cluster & Eno ''Cluster & Eno'' is a collaborative album by German electronic music group Cluster and English ambient musician Brian Eno. The style of this album is a collection of gentle melodies: a mixture of Eno's ambient sensibilities and Cluster's avant ...

'' and 1978's ''

After the Heat ''After the Heat'' is a 1978 album by Brian Eno, Dieter Moebius and Hans-Joachim Roedelius (the latter two being the core members of Cluster), credited to "Eno Moebius Roedelius". The album represents the second collaboration by the trio, the fi ...

'', the latter of which gained the band much attention in the British music press. A further Cluster album produced by former Tangerine Dream member Peter Baumann '' Großes Wasser'' extended Cluster's music into long form.

Solo career

Roedelius' solo career began with ''

Durch die Wüste ''Durch die Wüste'' is the first full-length solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. The title is German for "Through the Desert." The music on ''Durch Die Wüste ...

'' in 1978 and then ''

Jardin Au Fou ''Jardin Au Fou'' is the second solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster. The title is French for "Madman's Garden". ''Jardin Au Fou'' was recorded from April through July, 1978 at Paragon St ...

'' in 1979. The first of the lengthy ''Selbstportrait'' series was released in 1979, being material done beside his work with Cluster and Harmonia, without the input of his collaborators. Mostly recorded on simple two-track equipment, the Selbstportraits make up the backbone of Roedelius' early solo recordings. Leaving Sky in 1982, his work took a more

new-age New Age is a range of spiritual or religious practices and beliefs which rapidly grew in Western society during the early 1970s. Its highly eclectic and unsystematic structure makes a precise definition difficult. Although many scholars conside ...

style as he signed to Virgin's ''Venture'' sub-label. During this period, his best selling solo album '' Geschenk des Augenblicks – Gift of the Moment'' was released. He was dropped by Venture in 1989 and began releasing on a variety of small labels. ''Sinfonia Contempora No. 2: La Nordica (Salz Des Nordens)'' was released in 1996. Also released in this period was ''Selbstportrait VI: The Diary of the Unforgotten'', the first of the modern ''Selbstportraits''. Now, rather than merely remastering the seventies tapes, Roedelius also played over them, the sound montage ''Homage á Forst'' samples many Harmonia and Cluster tracks into the mix.

21st century

The turn of the century was Roedelius' most productive year, with no fewer than eight albums being released between 2000 and 2001. Reprising the ''Selbstportrait'' series for the seventh time in 2000, Roedelius composed entirely new tracks for the first time on ''Selfportrait VII: dem Wind voran – ahead of the wind''. The new millennium also saw Roedelius begin to work with other, usually younger, musicians than he had done since the late eighties. In the meantime, Cluster had reformed. 1990's ''

Apropos Cluster ''Apropos Cluster'' is a full-length studio album by Dieter Moebius and Hans-Joachim Roedelius also known as German electronic music outfit Cluster. It was also their first album after an eight-year-long hiatus. In 1989 Dieter Moebius and Hans-J ...

'' was an update for the band, being a work of avant-techno not dissimilar in style to ''Großes Wasser''. In 1996 Cluster embarked on two international tours, one of Japan and one of America. Cluster reunited again in 2007. In November 2010 it was announced that Cluster had split up for the third time. In the official announcement, the split up was described as

Moebius Moebius, Möbius or Mobius may refer to: People * August Ferdinand Möbius (1790–1868), German mathematician and astronomer * Theodor Möbius (1821–1890), German philologist * Karl Möbius (1825–1908), German zoologist and ecologist * Paul ...

leaving the group. In the wake of this news, Roedelius announced that he was beginning a new project called Qluster, to follow on from Cluster and Kluster. The band is made up of Roedelius and accomplished electronic musician Onnen Bock with third member Armin Metz and released a trilogy consisting of "''Rufen''", "''Fragen''" and "''Antworten''" (''Calling'', ''Asking'' and ''Answering'') in 2011. His autobiography, ''The Book – The Autobiography of Hans-Joachim Roedelius'', was published in 2018. In March 2021 Roedelius launched his official website and in April he performed his first free surprise live stream concert on YouTube.

Discography

''In bands'' ;In Human Being *2008 : ''Live at the Zodiak – Berlin 1968'' (live album) ;In Kluster *1970 : '' Klopfzeichen'' (studio album) *1970 : ''

Zwei-Osterei ''Zwei-Osterei'' is the second full-length album by German experimental music trio Kluster. The album title translates to English as "Two - Easter egg". ''Zwei-Osterei'' was recorded on February 23, 1970 at Rhenus-Studio, Gordorf, Germany. ''Z ...

'' (studio album) *1971 : '' Eruption'' (live album, originally released as ''Kluster und Eruption'') ;In

*1971 : '' Cluster '71'' (studio album) *1972 : '' Cluster II'' (studio album) *1974 : '' Zuckerzeit'' (studio album) *1976 : '' Sowiesoso'' (studio album) *1979 : '' Großes Wasser'' (studio album) *1980 : ''

Live in Vienna ''Live in Vienna, 1980'' is a live collaborative album by German electronic music outfit Cluster and percussionist Joshi Farnbauer. It is the first of four live albums recorded by Cluster, and their only work with Farnbauer. The album was rel ...

'' (live album) *1981 : ''

Curiosum ''Curiosum'' is the ninth album by the electronic music outfit Cluster. It was also the final collaboration between Dieter Moebius and Hans-Joachim Roedelius before an eight-year hiatus. ''Curiosum'' was recorded in May 1981 at Hamet Hof in Vie ...

'' (studio album) *1984 : '' Stimmungen'' (compilation album) *1990 : ''

'' (studio album, credited to ''Moebius + Roedelius'') *1994 : ''

One Hour ''One Hour'' is the eleventh full-length album by German electronic music outfit Cluster. It was recorded live in the studio in Vienna, Austria in July, 1994 and released on January 24, 1995 on the U.S.-based Gyroscope label. Precisely one h ...

'' (live album) *1997 : ''

Japan 1996 Live ''Japan 1996 Live'' is the eleventh full-length album by German electronic music outfit Cluster. It was the second of three live albums released by Cluster. ''Japan 1996 Live'' was recorded at On Air West in Tokyo and also in Osaka, Japan in ...

'' (live album, credited to ''Roedelius Moebius'' on some editions) *1997 : ''

First Encounter Tour 1996 ''First Encounter Tour 1996'' is the thirteenth full-length album by German electronic music outfit Cluster. It is also the third live album released, and the only double album released by Cluster. ''First Encounter Tour 1996'' was recorded at ...

'' (live album) *2008 : ''

Berlin 07 ''Berlin 07'' is a live album by the German experimental music group Cluster. It was recorded in 2007 at a Cluster concert in Berlin, their first there since 1969. Background Cluster was initially formed in 1969, breaking up in 1981. A reunion ...

'' (live album) *2009 : ''

Qua Qua may refer to: * Alfonso Qua, sailor from Philippines * Castle Qua, in Scotland * Lam Qua (1801–1860), Chinese painter * ''Qua'' (album), a 2009 album by German band Cluster * Quapaw language, a Siouan language with ISO 639-3 code qua See ...

'' (studio album) ;In Harmonia *1974 : ''

'' (studio album) *1975 : '' Deluxe'' (studio album) *1976 : ''

'' (studio album, recorded in 1976 and released in 1997) *2007 : ''

Live 1974 ''Live 1974'' is the only live album released by the highly influential krautrock group Harmonia. It was recorded live in concert on 23 March 1974 at Penny Station in Griessem, Germany. The live album was released in 2007 by Grönland Records. I ...

'' (live album) ;In

*1991 : ''Friendly Game'' (studio album, credited to ''Roedelius, Capanni, Alesini'') *1993 : ''To Cover The Dark'' (studio album) *1998 : ''Aquarello'' (live album, credited as Roedelius solo album) ;In Global Trotters (Kenji Konishi,

Susumu Hirasawa is a Japanese musician and composer. In the fifth year of elementary school, Hirasawa took up the electric guitar, inspired by the surf and instrumental rock bands he heard on the radio and on TV, later joining his junior high school's band. ...

, Alquimia, David Bickley, Felix Jay,

Alex Paterson Alex Paterson (also known as Dr Alex Paterson, born Duncan Alexander Robert Paterson; 15 October 1959 in Battersea, London) is an English musician and co-founder of ambient house group The Orb, in which he has worked since its inception. Life ...

) *1999 : ''Drive'' (studio album) *1999 : ''Global Trotters Project volume I – DRIVE'' (remix album) ;In

Qluster Hans-Joachim Roedelius (born 26 October 1934) is a German electronic musician and composer, best known as a co-founder of the influential 'kosmische' groups Cluster and Harmonia. He also performed in the ambient jazz trio Aquarello, and relea ...

*2011 : ''Fragen (album)'' (studio album) *2011 : ''Rufen'' (live album) *2011 : ''Antworten'' (studio album) *2013 : ''Lauschen'' (live album) *2015 : ''Tasten'' (studio album – three pianos project) *2016 : '' Echtzeit'' (studio album) *2018 : ''Elemente'' (studio album) ''Solo work'' *1978 : ''

'' (studio album) *1979 : ''

Selbstportrait ''Selbstportrait'' is the third solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. The title is German for "Self Portrait", a title meant to reflect the gentle, introspective na ...

'' (studio album) *1980 : ''

Selbstportrait – Vol. II ''Selbstportrait – Vol. II'' is the fourth solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia and Aquarello. The title is German for "Self Portrait - Vol. II", a title which clearly reflects t ...

'' (studio album) *1980 : '' Selbstportrait Vol. III "Reise durch Arcadien"'' (studio album) *1981 : ''

Lustwandel ''Lustwandel'' is the sixth solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. All the pieces on the album were composed by Roedelius with the sole exception of "Wilkommen", wh ...

'' (studio album) *1981 : ''

Wenn Der Südwind Weht ''Wenn Der Südwind Weht'' is the seventh solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. All the pieces on the album were composed by Roedelius. It was released by Sky Reco ...

'' (studio album) *1982 : ''

Offene Türen ''Offene Türen'' (German for "Opening Doors") is the eighth solo album by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. The music of ''Offene Türen'' is more avant-garde than other Ro ...

'' (studio album) *1982 : '' Flieg' Vogel fliege'' (studio album) *1982 : ''

Wasser im Wind ''Wasser im Wind'' (German for "Water in the Wind") is the tenth solo album by keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. Recording and release ''Wasser im Wind'' was recorded in 1981 at Ro ...

'' (studio album) *1984 : ''

Auf leisen Sohlen ''Auf leisen Sohlen'' (German for "Silent Footsteps") is a compilation by Sky Records of works by German keyboardist Hans-Joachim Roedelius, best known for his work with Cluster, Harmonia, and Aquarello. It is subtitled ''Das Beste von H. J. R ...

'' (compilation album) *1984 : '' Geschenk des Augenblicks – Gift of the Moment'' (studio album) *1984 : ''

Begegnungen ''Begegnungen'' (German for "meetings" or "encounters") is a Sky Records 1984 collection of music by Brian Eno, Dieter Moebius, Hans-Joachim Roedelius and Conny Plank, compiled from these seven solo and collaborative albums released by Sky bet ...

'' (compilation album) *1985 : ''

Begegnungen II ''Begegnungen II'' is a Sky Records 1985 compilation album (second volume to ''Begegnungen'') with recordings by Brian Eno, Dieter Moebius, Hans-Joachim Roedelius, Conny Plank, Cluster, from solo albums, and from various collaborations between ...

'' (compilation album) *1986 : '' Wie das Wispern des Windes'' (studio album) *1987 : ''Momenti Felici'' (studio album) *1989 : ''Bastionen der Liebe – Fortress of Love'' (studio album) *1990 : ''Variety of Moods'' (studio album) *1991 : ''Der Ohrenspiegel'' (studio album) *1991 : ''Piano Piano'' (studio album) *1992 : ''Cuando... Adonde'' (studio album) *1992 : ''Frühling'' (studio album) later re-released as ''Romance in the Wilderness'' *1993 : ''Tace!'' (studio album) *1994 : ''Sinfonia Contempora No. 1: Von Zeit zu Zeit'' (studio album) *1994 : ''Theatre Works'' (studio album) *1995 : ''Selbstportrait VI: The Diary of the Unforgotten'' (studio album) *1995 : ''Vom Nutzen der Stunden – Lieder vom Steinfeld Vol. I'' (studio album) *1995 : ''61sechzigjahr'' (compilation album, released privately) *1996 : ''Sinfonia Contempora No. 2: La Nordica (Salz Des Nordens)'' (studio album) *1996 : ''Pink, Blue And Amber'' (studio album) *1999 : ''Selfportrait VII: dem Wind voran – ahead of the wind'' (studio album) *1999 : ''Amerika Recycled by America Inc'' (studio album) *1999 : ''Vom Nutzen der Stunden – Lieder Vom Steinfeld Vol.II'' (studio album) *2000 : ''Roedeliusweg'' (studio album) *2001 : ''Roedelius 2001 – Orgel Solo'' (studio album) *2001 : ''Das Verwirrte Schaf – Wort-Klang Collage zum Aschermittwoch'' (studio album) *2002 : ''Selbstportrait VIII – Introspection'' (studio album) *2003 : ''American Steamboat'' (studio album) *2003 : ''Counterfeit'' (studio album) *2003 : ''Lieder vom Steinfeld Vol.III'' (studio album) *2003 : ''Roedelius 1969–2002'' (compilation album) *2006 : ''Works 1968–2005'' (compilation album) *2007 : ''Snapshots/Sidesteps'' (studio album) *2008 : ''Back Soon'' (compilation album) *2010 : ''Ex Animo'' (studio album) *2016: ''Manchmal'' (1 track on 4 tracks compilation EP "past forward", vinyl release only) *2017 Release of Roedelius' autobiography "Roedelius – Das Buch" *2017 Music for the soundtrack of Nick Cave for the film "War Machine" *2018 Music for the film "Symphony of Now" to be released 14 February *2018 Music for the film "Die Rueden" from director Connie Walther (not yet released) *2020 : ''Selbstportrait IX – Wahre Liebe'' (studio album) *2020 : Drauf und Dran (studio album) ''Collaborations'' ;With

, Dieter Moebius and Michael Rother *1997 : ''

'' (credited to either ''Harmonia '76'' or ''Harmonia and Eno '76'') *2009 : ''Harmonia & Eno '76 Remixes'' (remix album) ;With

and Dieter Moebius *1977 : ''

'' (credited to ''Cluster & Eno'') *1978 : ''

'' (studio album) *1985 : ''

Old Land ''Old Land'' is a Relativity Records 1985 compilation album by Cluster and Brian Eno. All of the tracks had been previously released on two prior albums: '' Cluster & Eno'' and '' After the Heat'', which were released on LP by Sky Records in 1 ...

'' (compilation album) (credited to ''Cluster and Brian Eno'') ;With

and Dieter Moebius on Eno's solo album *1977 : ''

Before and after Science ''Before and After Science'' is the fifth studio album by British musician Brian Eno. Produced by Eno and Rhett Davies, it was originally released by Polydor Records in December 1977 in the United Kingdom and by Island U.S. soon after. Musicia ...

'' (studio album) **Track: "By This River" ;With Alexander Czjzek *1987 : ''Weites Land'' (studio album) ;With Aqueous *1994 : ''Grace Notes'' (studio album) *1997 : ''Meeting The Magus'' (studio album) ;With Richard Barbieri and Chianura *1998 : ''T'ai'' (studio album) ;With Alquimia *2000 : ''Move and Resonate'' ;With Tim Story (sometimes collectively referred to as ''Lunz'') *2000 : ''The Persistence of Memory'' (studio album) *2002 : ''Lunz'' (studio album) *2005 : ''Lunz-Reinterpretations'' (remix album) *2008 : ''Inlandish'' (studio album) *2014 : ''Lazy Arc'' (studio album) *2018 : ''The Roedelius Cells'' (studio album) *2019 : ''Lunz 3'' (studio album) *2022 : ''4 Hands'' (studio album) ;With

*2001 : ''Acon 2000/1'' (studio album) ;With Fabio Capanni, Felix Dorner, Hirishi Nagashima and

Robin Storey Rapoon is a musical project of Robin Storey, a former member of Zoviet France, who has released material on notable independent labels such as Staalplaat, Soleilmoon, Manifold, Beta-Lactam Ring, and Lens Records. Selected discography * '' ...

*2001 : ''Evermore'' ;With Lynn *2001 : ''Act of Love'' (studio album) ;With Nikos Arvanitis *2002 : ''Digital Love'' (studio album) ;With Noh 1 *2003 : ''Imagine Imagine'' (soundtrack album, released as ''Roedelius and Fratellis'') *2009 : ''Fibre'' (studio album) ;With Morgan Fisher *2005 : ''

Neverless ''Neverless'' is a collaboration between ambient composers and musicians Hans-Joachim Roedelius and Morgan Fisher. Basic tracks were recorded at Roedelius Studio in Austria and The Handmade Studio in Tokyo. Tracks were overdubbed and mixed by Mo ...

'' (studio album) ;With David Bickley *2008 : ''Bonaventura'' (studio album) ;With Kava *2008 : ''The Gugging Album'' (studio album) ;With Tim Story and Dwight Ashley *2008 : ''Errata'' (studio album) ;With

Alessandra Celletti Alessandra Celletti (born 6 June 1966) is an Italian pianist, vocalist, songwriter and composer, best known as an interpreter of Erik Satie. Biography Alessandra Celletti comes from a purely classical background, graduating at the Conservato ...

*2009 : ''Sustanza di cose sperata'' (studio album) ;With

Christopher Chaplin Christopher James Chaplin (born 8 July 1962) is a Swiss-born English composer and actor. He is the youngest son of film comedian Charlie Chaplin and his fourth wife Oona O'Neill. Biography Christopher Chaplin was born on 8 July 1962 at Clin ...

*2012 : ''King of Hearts'' (studio album) With Andrew Heath and

* 2017 :''Triptych in Blue'' (live album) ;With Lloyd Cole *2013 : ''Selected Studies Vol. 1'' (studio album) ;With Leon Muraglia *2015 : ''Ubi Bene'' (studio album) ;With Mateo Latosa and Cesar Gallegos (aka TKU Tecamachalco Underground) *2016 : ''

Latitudes In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pol ...

'' (music installation for photography exhibition, 2014/studio album release, 2016) ;With Arnold Kasar *2017 : ''Einfluss'' ;With Thorsten Quaeschning, Hoshiko Yamane, and

Paul Frick Paul Joseph Frick is an American psychologist and the Roy Crumpler Memorial Chair in psychology at Louisiana State University (LSU), as well as a professor at the Learning Sciences Institute of Australia at Australian Catholic University. He is kn ...

*2020 : ''Klangtraube''

References

External links

Biography @ official websiteHans-Joachim Roedelius Official HomepageHANS JOACHIM ROEDELIUS – Contemporary Electronic, Piano and …
*
Hans-Joachim Roedelius, Interview – Human Sound
{{DEFAULTSORT:Roedelius, Hans-Joachim 1934 births Living people Musicians from Berlin German male musicians Ambient musicians German electronic musicians New-age musicians German keyboardists All Saints Records artists E.G. Records artists Grönland Records artists Rykodisc artists PolyGram artists Barclay Records artists Caroline Records artists German Catholics Hitler Youth members East German defectors