| Year | Title | audio | form | collaborators | company | place | date | # |
|---|---|---|---|---|---|---|---|---|
| 2020 | RITUALE |
stage | Roberto Scafati / 瀬山葉子 Yoko Seyama | Stadttheater Trier/ Germany | location | 2020 March 14/ Premiere Postponed | 96 | |
| 2020 | Beethoven - Immortal - Love |
stage | Raimondo Rebeck / Yoko Seyama | Astana Opera State Ballet Nur Sultan | Nur Sultan/ Kazakhstan | 2020 February 14 | 93 | |
| 2020 | DIMENTION |
stage | Ivan Perez/ 瀬山葉子 Yoko Seyama | Theater Heidelberg/Germany | Heidelberg/Germany | 2020 January 24 | 92 | |
| 2019 | STAY / AWAY |
installation/dance | Frankie Ho / 瀬山葉子 Yoko Seyama / Bruce Wong Chun | Hook Dance Theatre / ArtisTree TAIKOO PLACE Hong | Hong Kong | 2019 Aug 8 | 91 | |
| 2018 | Moving Colors |
stage | 瀬山葉子 Yoko Seyama, Armen Hakobyan, Denis Untila | Aalto Ballett Essen | Essen Germany | 2018 April 28 | 88 | |
| 2017 | Pepper's Ghost |
stage | Fernando Melo, 瀬山葉子 Yoko Seyama | Norrdans Sweden | Härnösand | 2017 March 11 | 85 | |
| 2016 | Delays Of Falling |
installation | 瀬山葉子 Yoko Seyama | - | Düsseldorf, Germany | 2016 | 84C | |
| 2016 | Saiyah Video |
DVD | 瀬山葉子 Yoko Seyama | Berlin, Germany | 2016 | 84B | ||
| 2015 | Melody Dots 21 (2015/2016) |
installation | 瀬山葉子 Yoko Seyama | - | Amsterdam, The Netherlands | 2015 December 10 | 83B | |
| 2010 | AMAKO / rain drums |
installation | 瀬山葉子 Yoko Seyama | Korzo 5Hoog | The Hague, The Netherlands | 2010 October 7 | 71.5 |