| 1980 | International Gaudeamus Music Week, Utrecht | Netherlands | Isolation |
| 1980 | VARA Concerten uit Studio 1, Hilversum | Netherlands | Isolation |
| 1981 | Recital Harry Sparnaay Suedfunk, Karlsruhe | Germany | Isolation |
| 1981 | Recital Harry Sparnaay, Heidelberg | Germany | Isolation |
| 1982 | Witte Konserten, Utrecht | Netherlands | Isolation |
| 1982 | Witte Konserten, Groningen | Netherlands | Isolation |
| 1982 | Witte Konserten, Arnhem | Netherlands | Isolation |
| 1982 | Witte Konserten, Amsterdam | Netherlands | Isolation |
| 1982 | Witte Konserten, The Hague | Netherlands | Isolation |
| 1982 | Irino Prize Winner Concert. Tokyo | Japan | Isolation |
| 1983 | Concert of Gijsbrecht van Amstel Quartet, Amsterdam (2 concerts) | Netherlands | Junction |
| 1983 | Holland Festival, Amsterdam | Netherlands | Solidity |
| 1983 | Holland Festival, Den Haag | Netherlands | Solidity |
| 1983 | Holland Festival, Nijmegen | Netherlands | Solidity |
| 1983 | Holland Festival, Groningen | Netherlands | Solidity |
| 1983 | Sonology Concert, Utrecht | Netherlands | Pain |
| 1984 | Masumi Nagasawa Harp Recital "Transparent Space", Tokyo | Japan | Transparency |
| 1984 | Keiko Abe/Harry Sparnaay Joint Concert, Tokyo | Japan | Isolation |
| 1984 | Elektronisch Concert IV Japan, Utrecht | Netherlands | Pain |
| 1985 | Saeko Ichinohe and Company, New York | U.S.A. | Pain |
| 1985 | Stedelijk Museum, Amsterdam | Netherlands | Pain |
| 1985 | International Experimental Music Festival "15th Synthese", Bourges | France | Transparency |
| 1985 | Elektronisch Concert I m.m.v. Masumi Nagasawa, Utrecht | Netherlands | Transparency |
| 1985 | ISCM World Music Days, Amsterdam | Netherlands | Solidity |
| 1985 | Exhibition of Contemporary Music ′85, Tokyo | Japan | Solidity |
| 1986 | 4th International New Music forum, Warsaw | Poland | Solidity |
| 1986 | International Gaudeamus Music Week, Utrecht | Netherlands | Isolation |
| 1986 | 10th New Music Festival, Middelburg | Netherlands | Junction |
| 1986 | 10th New Music Festival, Middelburg | Netherlands | Friction |
| 1986 | International Computer Music Conference, The Hague | Netherlands | Five Inventions |
| 1986 | Residency Orchestra Concert, The Hague | Netherlands | Five Inventions |
| 1986 | Almeida International Festival of Contemporary Music and Performance, London | UK | Friction |
| 1986 | Sound Space ARK 6, Tokyo | Japan | Friction |
| 1986 | International Experimental Music Festival "16th Synthese", Bourges | France | Pain |
| 1987 | ASKO Ensemble Outward Bound, The Hague | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Nijmegen | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Utrecht | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Groningen | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Amsterdam | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Eindhoven | Netherlands | Solidity |
| 1987 | ASKO Ensemble Outward Bound, Haarlem | Netherlands | Solidity |
| 1988 | Japanese Music Days, Cologne | Germany | Transparency |
| 1988 | Sonology Concert, Utrecht | Netherlands | Five Inventions |
| 1988 | Muziek van nu, The Hague | Netherlands | Five Inventions |
| 1988 | International Computer Music Conference, Cologne (ICMC) | Germany | Transparency |
| 1988 | International Experimental Music Festival "18th Synthese", Bourges | France | Four Inventions |
| 1989 | The IRINO Prize 10th Anniversary Concert, Tokyo | Japan | Transparency |
| 1989 | Prijswinnaars van het Internationaal Concours voor Electroakoestische Muziek Bourges 1989, Utrecht | Netherlands | Four Inventions |
| 1989 | International Gaudeamus Music Week, Amsterdam | Netherlands | Four Inventions |
| 1990 | Concert of VRT, Brussels | Belgium | Broken White |
| 1990 | World Harp Congress, Paris | France | Transparency |
| 1990 | Belgian/Dutch Music Days, Maastricht | Netherlands | Broken White |
| 1991 | Japan Week, Amsterdam | Netherlands | Broken White |
| 1991 | Ensemble D′ACCORD m.m.v Mondriaan String Quartet, The Hague | Netherlands | Style |
| 1991 | International Computer Music Conference, Montreal (ICMC) | Canada | Sparkle |
| 1991 | Mondriaan String Quartet Concert, Amsterdam | Netherlands | Style |
| 1991 | New Music from The Netherlands, Tokyo | Japan | Sparkle |
| 1991 | Cello Festival at Ysbrejer, Amsterdam | Netherlands | Recursive Figuration |
| 1991 | 19th Pan Music Festival, Seoul | Korea | Sparkle |
| 1991 | Memorial Concert for Rosa Spier, Amsterdam | Netherlands | Transparency |
| 1991 | UNESCO 1st Conference of International Young Composers for Electroacoustic Music, Paris | France | Transparency |
| 1992 | International Computer Music Conference, San Jose California | U.S.A. | Three Inventions |
| 1993 | 9th International Contemporary Music Festival, Alicante | Spain | Static Sequence |
| 1993 | Concert of Ensemble Gending, Amsterdam | Netherlands | Three Unknown Spaces |
| 1993 | Concert of Ensemble Gending, Utrecht | Netherlands | Three Unknown Spaces |
| 1993 | Concert of Ensemble Gending, Bergen | Netherlands | Three Unknown Spaces |
| 1993 | Concert of Ensemble Gending, Amersfoort | Netherlands | Three Unknown Spaces |
| 1993 | Concert of Ensemble Gending, Arnhem | Netherlands | Three Unknown Spaces |
| 1993 | Memorial Ceremony of Dr.Mori, Tokyo | Japan | Meteor |
| 1994 | Yoshiko Shibuya Piano Recital, Tokyo | Japan | Kinetic Figuration |
| 1995 | Musiana95, Louisiana Museum | Denmark | Sparkle |
| 1995 | Musiana95, Louisiana Museum | Denmark | Isolation |
| 1995 | Musiana95, Louisiana Museum | Denmark | Transparency |
| 1995 | 25th International Electroacoustic Music Festival "Synthese 95", Bourges | France | Seven Refractions |
| 1995 | International Festival "Encuentros ′95", Buenos Aires | Argentine | Sparkle |
| 1996 | Computer Music Today ′96, Kobe | Japan | Pain |
| 1996 | Yoshiko Shibuya Piano Recital, Tokyo | Japan | Four Inventions |
| 1997 | Music Now in Belgium, Tokyo | Japan | Friction |
| 1997 | NTT Computer Music Symposium, Tokyo | Japan | Impulse |
| 1999 | SonicArt ′99, Tokyo | Japan | Transfiguration |
| 1999 | 29th International Electroacoustic Music Festival "Synthese 99", Bourges | France | Transfiguration |
| 2000 | Electroacoustic Music Festival=Fu-Jen Catholic University, Taipei Hsien | Taiwan | Transparency |
| 2000 | X Festival De Musica Contemporanea Chilena, Santiago | Chile | Transparency |
| 2000 | International Computer Music Conference, Berlin (ICMC) | Germany | Kinetic Figuration |
| 2000 | Concert of the 20th Anniversary of Prof. Irino′s Death, Tokyo | Japan | Mirage |
| 2001 | ISCM World Music Days 2001, Yokohama | Japan | Mirage |
| 2001 | NTT Computer Music Symposium II, Tokyo | Japan | Transfiguration |
| 2001 | Media Art Festival, Hamamatsu | Japan | Lucent Aquarelle |
| 2002 | Computer Music Concert at Opera City, Tokyo | Japan | Seven Refractions |
| 2002 | International Computer Music Conference, Gothenburg (ICMC) | Sweden | Lucent Aquarelle |
| 2002 | Warsaw Autumn Festival of Contemporary Music, Warsaw | Poland | Transparency |
| 2002 | Mix.02, Aarhus | Denmark | Transfiguration |
| 2002 | SonicArt 2002, Tokyo | Japan | Lucent Aquarelle |
| 2003 | Digital Music Festival 2003, Kobe | Japan | Seven Refractions |
| 2003 | Festival JIEM2003, Madrid | Spain | Transparency |
| 2003 | SonicArt 2003, Tokyo | Japan | Facade |
| 2003 | Musica Viva Festival, Coimbra | Potugal | Transfiguration |
| 2003 | 33th International Electroacoustic Music Festival "Synthese 2003", Bourges | France | Kinetic Figuration |
| 2003 | Music of Japan Today, The University of Maryland, Baltimore County (UMBC) | U.S.A. | Pain |
| 2003 | Concert of Lars Graugaard, Tallinn | Estonia | Seven Refractions |
| 2004 | SonicArt 2004 Soloist Series-II, Tokyo | Japan | Impulse |
| 2004 | International Gaudeamus Music Week, Amsterdam | Netherlands | Facade |
| 2004 | June in Buffalo Festival, Buffalo | U.S.A. | Lucent Aquarelle |
| 2004 | June in Buffalo Festival, Buffalo | U.S.A. | Transparency |
| 2004 | SonicArt 2004 SoloistSeries-I, Tokyo | Japan | Lucent Aquarelle |
| 2004 | SonicArt 2004 SoloistSeries-I, Tokyo | Japan | Transparency |
| 2004 | SIGMUS Computer Music Symposium, Yokohama | Japan | Labyrinth |
| 2004 | Concert of Lars Graugaard, New York | U.S.A. | Seven Refractions |
| 2005 | Banquet concert at the International Conference on Entertainment Computing 2005, Kobe | Japan | Lucent Aquarelle |
| 2005 | the International ClarinetFest 2005, Tokyo | Japan | Transfiguration |
| 2005 | Harry Sparnaay: Lecture Concert at Kunitachi College of Music, Tokyo | Japan | Sparkle |
| 2005 | Electronic Music Festival "real-time/non real-time", Basel | Switzerland | Lucent Aquarelle |
| 2005 | Electronic Music Festival "real-time/non real-time", Basel | Switzerland | Transparency |
| 2005 | Electronic Music Festival "real-time/non real-time", Basel | Switzerland | Facade |
| 2005 | 35th International Electroacoustic Music Festival "Synthese 2005", Bourges | France | Facade |
| 2006 | Concert Series "Compositions in Japan", Tokyo | Japan | Transparency |
| 2006 | Harry Sparnaay: Bass Clarinet and Electronics, Barcelona | Spain | Sparkle |
| 2007 | International Computer Music Conference, Copenhagen (ICMC) | Denmark | Labyrinth |
| 2007 | Festival Internacional de Musica Contemporanea de Michoacan, Morelia | Mexico | Time flows |
| 2007 | 37th International Electroacoustic Music Festival "Synthese 2007", Bourges | France | Labyrinth |
| 2007 | 37th International Electroacoustic Music Festival "Synthese 2007", Bourges | France | Four Inventions |
| 2007 | Music of Japan Today, The University of Maryland, Baltimore County (UMBC) | U.S.A. | Labyrinth |
| 2008 | LICA-Mantis Electronic Music Festival, Lancaster | UK | Facade |
| 2009 | Concert at the Cervantes Culture Center, Tokyo | Japan | Facade |
| 2009 | Concert at Brooklyn Borough, New York | U.S.A. | Active Figuration |
| 2009 | Harp Music in Future 2009, Yokohama | Japan | Transparency |
| 2009 | 39th International Electroacoustic Music Festival "Synthese 2009", Bourges | France | horizontal stillness |
| 2009 | Music From Japan Festival 2009, New York | U.S.A. | Active Figuration |
| 2009 | Music From Japan Festival 2009, Washington D.C. | U.S.A. | Active Figuration |
| 2009 | Music From Japan Festival 2009, Annandale, NY | U.S.A. | Active Figuration |
| 2009 | Music From Japan, Murfreesboro, Tennessee | U.S.A. | Active Figuration |
| 2010 | The Royal Conservatory, The Hague | Netherlands | Lucent Aquarelle |
| 2010 | Concert at Chapel Performance Space, Seattle | U.S.A. | Active Figuration |
| 2011 | Asian Computer Music Project, Tokyo | Japan | Active Figuration |
| 2011 | IV Festival de M_sica Contempor_nea "Ramiro Guerra", Monterrey | Mexico | Isolation |
| 2012 | ISCM World Music Days, Mons | Belgium | Active Figuration |
| 2012 | Media Project Vol. 11, Tokyo | Japan | Facade |
| 2012 | Spring Concert IV "Interpretation of Contemporary Music for Piano", Tokyo | Japan | Discrete Transfer |
| 2012 | Computer Music Concert organized by ISCM Japan Section, Tokyo | Japan | Discrete Transfer |
| 2013 | Musica Nova Helsinki, Helsinki | Finland | Seven Refractions |
| 2013 | The 2013 New York City Electroacoustic Music Festival, New York | U.S.A. | Discrete Transfer |
| 2013 | NoiseFloor Festival, Stafford | UK | Sparkle |
| 2013 | KOEN-DORI CLASSICS, Tokyo | Japan | Facade |
| 2013 | International Computer Music Conference, Perth (ICMC) | Australia | Discrete Transfer |
| 2014 | Ensemble Nomad, Sichuan Conservatory of Music, Chendu | China | Discrete Transfer |
| 2014 | Norio Sato & Joseph Mirandilla, Sichuan Conservatory of Music, Chendu | China | Facade |
| 2014 | The 2014 New York City Electroacoustic Music Festival, New York | U.S.A. | Active Figuration |
| 2014 | International Computer Music Conference, Athens (ICMC) | Greece | Active Figuration |