KSS50 Opus Clavicembalisticum
Piece details
- Written for: Piano
- Date composed: 1929–30
- Dedicatee: Hugh M’Diarmid
- Approximate duration (minutes): 285
- Manuscript pages: 260
- Manuscript location: J.W.Jagger Library, University of Cape Town
- Comments: Published (J.Curwen and Sons Ltd., 909021, 1931). Sorabji wrote an analysis of this work; it was published in the book accompanying John Ogdon’s recording.
Editions available from the Sorabji Archive
- (Annotated) copy of publication, A3L. 260 pages.
Price: £60 (paper), £15 (pdf)
Right-click to download high resolution sample page: PDF PNG

- Manuscript, A3L. 260 pages.
Price: £60 (paper), £15 (pdf)
Right-click to download high resolution sample page: PDF PNG

Recordings
- Michael Habermann (piano),
Musical Heritage Society/MusicMasters MHS4271L (LP), MHC6271M (Cassette), MM20015 (LP), MM60015 (CD) (November 1980)
Track 1 Introito and Preludio-Corale (13:15)
- Geoffrey Douglas Madge (piano),
Royal Conservatory Series (Keytone Records) RCS4-800 (4LPs) (September 1983)
Track 1-12 (230:16)
Track 1 I Introito (2:55)
Track 2 II Preludio-Corale (13:51)
Track 3 III Fuga I quator vocibus (10:51)
Track 4 IV Fantasia (5:35)
Track 5 V Fuga II duplex (15:06)
Track 6 VI Interludium primum (Thema cum XLIX variationibus) (47:46)
Track 7 VII Cadenza I (4:25)
Track 8 VIII Fuga tertia triplex (32:23)
Track 9 IX Interludium alterum (53:36)
Track 10 X Cadenza II (2:49)
Track 11 XI Fuga IV quadruplex (33:30)
Track 12 XII Coda-Stretta (7:29)
- John Ogdon (piano),
Altarus Records AIR-CD9075 (May 1989)
Track 1-11 (286:50)
Track 1 I Introito (2:49)
Track 2 II Preludio-Corale (13:20)
Track 3 III Fuga I quator vocibus (12:36)
Track 4 IV Fantasia (4:19)
Track 5 V Fuga II duplex (18:06)
Track 6 VI Interludium primum (Thema cum XLIX variationibus) (58:09)
Track 7 VII Cadenza I (4:22)
Track 8 VIII Fuga tertia triplex (45:16)
Track 9 IX Interludium alterum (72:58)
Track 10 X Cadenza II (3:04)
Track 11 XI Fuga IV quadruplex – XII Coda-Stretta (51:51)
- Geoffrey Douglas Madge (piano),
BIS Records BIS-CD-1062/1064 (5CDs) (1999)
Track 1-12 (234:23)
Track 1 I Introito (3:03)
Track 2 II Preludio-Corale (13:33)
Track 3 III Fuga I quator vocibus (12:06)
Track 4 IV Fantasia (5:35)
Track 5 V Fuga II duplex (15:30)
Track 6 VI Interludium primum (Thema cum XLIX variationibus) (44:44)
Track 7 VII Cadenza I (4:40)
Track 8 VIII Fuga tertia triplex (33:18)
Track 9 IX Interludium alterum (57:17)
Track 10 X Cadenza II (3:04)
Track 11 XI Fuga IV quadruplex (33:18)
Track 12 XII Coda-Stretta (7:30)
- Michael Habermann (piano),
British Music Society BMS427-429 (3CDs) (2004)
Track 12 Introito and Preludio-Corale (13:15)
Performances
- 01/12/1930 Kaikhosru Shapurji Sorabji (piano)
Stevenson Hall, Glasgow, Scotland
Active Society for the Propagation of Contemporary Music
- 10/03/1936 John Tobin (piano) [i]
Cowdray Hall Contemporary Music Centre, London, UK
- 01/12/1959 John Ogdon (piano)
Townfoot House (home of Ronald Stevenson), West Linton, Scotland
Private reading
- 15/04/1978 Michael Habermann (piano) [1,2]
Great Hall, Post College, Greenvale NY, USA
- 13/05/1978 Michael Habermann (piano) [1,2]
Weill Recital Hall, Carnegie Hall, New York NY, USA
- 19/09/1978 Michael Habermann (piano) [1,2]
Great Hall, Post College, Greenvale NY, USA
- 27/09/1978 Michael Habermann (piano) [1,2]
Music Building, Nassau Community College, Garden City NY, USA
- 06/10/1978 Michael Habermann (piano) [1,2]
Midland Center for the Arts, Midland MI, USA
American Liszt Society Festival
- 09/08/1979 Michael Habermann (piano) [1,2]
University of Maryland, College Park MD, USA
International Piano Festival: Lecture-recital
- 01/02/1980 Paul Rapoport (computer realisation) [x]
Walter Hall, University of Toronto, Toronto, Canada
New Music Concerts: Illustrated Lecture by Paul Rapoport
- 01/06/1980 Geoffrey Douglas Madge (piano) [1,2]
Muziekcentrum Vredenburg, Utrecht, Netherlands
Holland Festival
- 05/06/1980 Geoffrey Douglas Madge (piano) [1,2]
Centrum Bellevue, Amsterdam, Netherlands
Holland Festival
- 09/06/1980 Geoffrey Douglas Madge (piano) [1,2]
Cultureel Centrum de Hagen, Almelo, Netherlands
Holland Festival
- 11/06/1980 Geoffrey Douglas Madge (piano) [1,2]
Schönbergzaal, Koninklijk Conservatorium, Den Haag, Netherlands
Holland Festival
- 11/06/1982 Geoffrey Douglas Madge (piano)
Muziekcentrum Vredenburg, Utrecht, Netherlands
Holland Festival
- 28/06/1982 Geoffrey Douglas Madge (piano) [iii]
Priory Church of St Bartholomew, London, UK
- 24/04/1983 Geoffrey Douglas Madge (piano)
Mandel Hall, University of Chicago, Chicago IL, USA
Contemporary Concerts
- 10/05/1983 Geoffrey Douglas Madge (piano)
Beethovenhalle, Bonn, Germany
XXXI Internationales Beethovenfest
- 02/11/1983 Geoffrey Douglas Madge (piano) [iii]
Chamber Hall, Århus, Denmark
International Society for Contemporary Music (World Music Days)
- 09/11/1984 Geoffrey Douglas Madge (piano)
Redpath Hall, McGill University, Montréal, Canada
Les Événements du Neuf
- 14/11/1984 Geoffrey Douglas Madge (piano) [1,2]
McLaughlin Hall, Faculty of Music, York University, Toronto, Canada
- 14/11/1984 Geoffrey Douglas Madge (piano) [1,2]
Music Gallery, Toronto, Canada
- 02/08/1986 Geoffrey Douglas Madge (piano) [1,2,4]
Youth Hall, Viitasaari, Finland
4th International Summer Academy and Festival: “Time of Music”
- 12/02/1988 Geoffrey Douglas Madge (piano) [1,2]
Universitets Aula, Oslo, Norway
Norsk Tangentfestival
- 14/07/1988 John Ogdon (piano)
Queen Elizabeth Hall, London, UK
- 09/10/1988 Geoffrey Douglas Madge (piano)
Opéra Comique, Paris, France
Festival d’Automne
- 02/11/1988 John Ogdon (piano)
Skinners’ Hall, Dowgate Street, London, UK
Cornhill Festival of British Music
- 01/03/1990 Julian Saphir (piano) [1]
Lecture room, Royal College of Music, London, UK
Lecture-recital
- 21/05/1990 Julian Saphir (piano) [1,2]
Recital Hall, Royal College of Music, London, UK
- 21/01/1993 Julian Saphir (piano) [1,2]
British Music Information Centre, London, UK
- 28/04/1995 Simon Abrahams (piano) [9]
Turner Sims Concert Hall, University of Southampton, Southampton, UK
Lunchtime Recital
- 12/11/1998 Geoffrey Douglas Madge (piano) [1,2]
India International Centre, New Delhi, India
- 20/11/1998 Geoffrey Douglas Madge (piano) [1,2]
National Centre for the Performing Arts, Mumbai, Inda
- 22/11/1998 Geoffrey Douglas Madge (piano) [1,2]
Gulati Hall, Poona, India
- 28/11/1998 Geoffrey Douglas Madge (piano) [1,2]
Guru Nanak Bhavan, Bangalore, India
- 19/12/2000 Eric Huebner (piano), Su-Yen Jeon (piano), Lora Tchekoratova (piano) [6x,7,9x]
Paul Recital Hall, Juilliard School of Music, New York NY, USA
“B-A-C-H”
- 12/03/2002 Geoffrey Douglas Madge (piano)
Konzertsaal, Universität der Künste, Berlin, Germany
“Klavier Solitär”: Berliner Festspiele “MaerzMusik” series
- 10/09/2003 Jean-Jacques Schmid (piano) [1]
Konzertsaal, Hochschule der Künste Bern, Bern, Switzerland
Bern Biennale
- 16/09/2003 Jonathan Powell (piano)
Purcell Room, London, UK
- 07/03/2004 Daan Vandewalle (piano)
Kamermuziekzaal, Concertgebouw, Brugge, Belgium
- 20/06/2004 Jonathan Powell (piano)
Merkin Hall, New York NY, USA
- 12/03/2005 Jonathan Powell (piano)
Almi Hall, Opera House, Helsinki, Finland
“Musica Nova” Festival
- 17/03/2005 Jonathan Powell (piano)
Sheremetev Palace, 34 Fontanka River Embankment, St. Petersburg, Russia
- 02/03/2006 Vasilios Tsokis (piano) [1,2]
St-Vallerin, Burgundy, France
Rencontres Culturelles Le Pinacle
- 12/04/2006 Daan Vandewalle (piano) [1,2]
Musée d’Art Contemporaine, Strasbourg, France
- 27/09/2008 Elsa Silva (piano) [x]
Palco do Grande Auditório, Lisbon, Portugal
Festival Expresso Oriente 2008
- 20/02/2009 Daan Vandewalle (piano) [1,2,3]
Theatre du chatelet, Paris, France
- 27/02/2009 Daan Vandewalle (piano)
Auditorio nacional, Madrid, Spain
- 28/05/2010 Daan Vandewalle (piano) [iii]
De Bijloke Muziekcentrum, Ghent, Belgium
Broadcasts etc.
- ??/??/1934 Maurice Katz (piano)
Studio of Maurice Katz, Philadelphia PA, USA []
private reading (may have occurred as late as 1938)
- ??/??/1975 Paul Rapoport (computer realisation) [x]
School of Music Building, University of Illinois, Urbana IL, USA [+]
Lecture on Sorabji by Paul Rapoport
- 20/10/1975 Paul Rapoport (computer realisation) [x]
Fine Arts Building University of Alberta, Edmonton, Canada [+]
Lecture on Sorabji by Paul Rapoport
- 11/06/1977 Yonty Solomon (piano) [i[x]]
LWT (London Weekend Television), London, UK [B]
“Aquarius” programme
- 08/05/1978 Michael Habermann (piano) [1,2]
WQXR (radio), New York NY, USA [+B]
“The Listening Room” programme
- 19/11/1979 Alistair Hinton (piano) [1[x]]
Leicester Polytechnic, Leicester, UK []
Illustrated Lecture
- 11/06/1980 Geoffrey Douglas Madge (piano) [1,2]
NOS (Nederlandse Omroeprogramma Stichting), Den Haag, Netherlands [B]
live relay
- 24/07/1980 Geoffrey Douglas Madge (piano) [1,2]
ABC Television, Sydney, Australia [B]
- 12/10/1980 Paul Rapoport (computer realisation) [x]
Home of William Marsh, Newtown PA, USA [+]
Delius Society (Philadelphia branch) meeting: Lecture by Paul Rapoport
- ??/03/1981 Michael Habermann (piano) [1,2]
US National Public Radio (many stations), , USA [B]
“Grand Piano” programme
- 11/06/1982 Geoffrey Douglas Madge (piano)
NOS (Nederlandse Omroeprogramma Stichting), Utrecht, Netherlands [B]
live relay
- 25/08/1982 Michael Habermann (piano) [1,2]
WUHY (later WHYY) (radio), Philadelphia PA, USA [+B]
90th birthday tribute
- 17/03/1983 Michael Habermann (piano) [1,2]
McGill University, Montréal, Canada [+]
Illustrated Lecture
- 15/08/1983 Michael Habermann (piano) [1,2]
WFUY (radio), New York NY, USA [+B]
“Concert Grande” programme
- 22/08/1983 Geoffrey Douglas Madge (piano) [9[iii]]
WFUY (radio), New York NY, USA [+B]
“Concert Grande” programme
- 29/08/1983 Geoffrey Douglas Madge (piano) [11,12]
WFUY (radio), New York NY, USA [+B]
“Concert Grande” programme
- 07/04/1984 Geoffrey Douglas Madge (piano)
WFMT (radio), Chicago IL, USA [B]
- 06/01/1985 Geoffrey Douglas Madge (piano)
Radio-Canada, Montréal, Canada [B]
“Musique de notre siècle” programme
- 02/08/1986 Geoffrey Douglas Madge (piano) [1,2,4]
(see above), Viitasaari, Finland [B]
Finnish Television
- 15/07/1988 John Ogdon (piano) [i[x]]
BBC World Service, London, UK [B]
“Outlook” programme
- 16/07/1988 John Ogdon (piano) [i[x]]
BBC World Service, London, UK [R]
“Outlook” programme
- 22/07/1988 Geoffrey Douglas Madge (piano) [x]
BBC World Service, London, UK [+B]
Special Overseas Service
- 26/07/1988 John Ogdon (piano) [i,ii[x]]
Cleveland Lodge (home of Lady Susi Jeans), Dorking, UK [+]
Organists’ Summer School: Illustrated Lecture
- 18/01/1989 John Ogdon (piano) [11[x]]
BBC Radio 4, London, UK [+B]
“Kaleidoscope” programme
- 24/02/1989 Geoffrey Douglas Madge (piano) [9[ii]]
NOS (Nederlandse Omroeprogramma Stichting), Hilversum, Netherlands [B]
- 19/03/1989 John Ogdon (piano) [6,12[x]]
LWT (London Weekend Television), London, UK [B]
“South Bank Show” programme
- 19/09/1989 John Ogdon (piano) [6,12[x]]
Channel 4 Television, London, UK [R]
repeat from LWT (London Weekend Television)
- 24/09/1989 John Ogdon (piano) [7]
BBC Radio 3, London, UK [+B]
- 27/12/1989 John Ogdon (piano) [7]
BBC Radio 3, London, UK [+R]
- 01/03/1990 John Ogdon (piano) [6,9,12[x]]
Lecture room, Royal College of Music, London, UK [+]
Lecture-recital
- 13/06/1990 Michael Habermann (piano) [1,2]
KPBX Radio, Spokane WA, USA [+B]
“Chamber Music” programme
- 14/08/1990 John Ogdon (piano) [3,4,5]
WFUV Radio, New York NY, USA [+B]
“Concert Grande” programme
- 09/08/1992 John Ogdon (piano) [1,9,11x,12]
Radio Bremen, Bremen, Germany [+B]
Hauptabteilung E-Musik, Redaktion Neue Musik
- 10/08/1992 John Ogdon (piano) [1,2]
Channel 2, Swedish Broadcasting Corporation, Stockholm, Sweden [+B]
- 17/08/1992 John Ogdon (piano) [iii]
Channel 2, Swedish Broadcasting Corporation, Stockholm, Sweden [+B]
- 29/10/1992 John Ogdon (piano) [6x,9x]
École de Musique, Salle Henri-Gagnon Université Laval, Québec, Canada [+]
Sorabji centenary lecture (Marc-André Roberge)
- 04/09/2001 John Ogdon (piano) [x]
WDR (Radio), Köln, Germany [+B]
Atlas der Moderne 166: presentation by Jens Hagestedt
- 04/09/2001 John Ogdon (piano), Geoffrey Douglas Madge (piano) [x]
WDR (Radio), Köln, Germany [+B]
Atlas der Moderne 166: presentation by Jens Hagestedt
- 12/11/2002 John Ogdon (piano) [x]
WDR (Radio), Köln, Germany [+B]
Atlas der Moderne 166: presentation by Jens Hagestedt
- 12/11/2002 John Ogdon (piano), Geoffrey Douglas Madge (piano) [x]
WDR (Radio), Köln, Germany [+B]
Atlas der Moderne 166: presentation by Jens Hagestedt
- 23/06/2004 John Ogdon (piano) [1,5]
WPRB, Princeton NJ, USA [+B]
“Classical Discoveries” programme
- 11/07/2005 John Ogdon (piano)
WPRB, Princeton NJ, USA [+B]
“Classical Discoveries” programme
- 07/10/2007 John Ogdon (piano) [x]
BBC Radio 3, London, UK [+B]
Iain Burnside’s playlist
- 19/01/2011 John Ogdon (piano)
CJUM, Winnipeg, Canada [+B]
- 13/11/2011 Geoffrey Douglas Madge (piano) [ii]
Filodiffusione (“Canale 5”), , Italy [+B]