- Worked as an experimental Guitarist for the Percussions Orchestra "Tokyo underground shakers" / in Tokyo

1991

- Worked as a guitarist for the avant-garde techno music group "Tri-wave" / in L.A.

- Worked as an Improvisational Guitarist for the poet reading project "Avant-guardians" / in L.A.

1992

- Worked as a guitarist for the world/ fusion music group "Area T" / in L.A.

- Guitarist for the experimental fusion group "Smash!" / in L.A.

1993

- Worked as an Improvisational Percussive Guitarist for the Tap Dancing performance by David Williams Jr. / in L.A.

- Worked as a guitarist for the Hip-hop Jazz group "Scooters"/ in L.A.

1993 - 1996

- The SEPHA's own Music & Art project "Words Like Winds"/ Music Performance in L.A., N.Y., Tokyo, London

1995

- Worked as an Improvisational Guitarist & Poet for the Acid Jazz project with poet "Talking Loud!" by Talking Loud! / in N.Y.

1996

- Worked as a Funk Jazz Guitarist for the hip-hop jazz projects by Street preachers/ in N.Y.

1997

- Worked for Music & Soundtrack creation for the modern and contemporary dancer’s project by Maki / in N.Y.

- Worked as an Improvisational Guitarist for the modern and contemporary dancer’s theatrical performance by Daniel Smith / in N.Y.

- Worked for the song creation for the visual art film work project by Kim Connerton & Eiko / in N.Y.
> The song created for the work : “The sun fallen on the ground” - Written, Composed, Sung, Played all the musical instruments, Recorded, Produced by SEPHA

1997 - 1999

- The SEPHA's own Music & Art project "Cosmic Language"/ Music Performance & Visual Art Show in L.A., N.Y., Paris, London, Tokyo.

1998

- Worked as a Singer for the theatrical performance “Kaidan”/ in N.Y.

- Worked as a Jazzy improvisational guitarist for the modern contemporary Ballet dancer’s performance by Steve Allen / in N.Y.

- Worked as an Experimental improvisational guitarist for the contemporary dancer’s performance by Reiko Onodera / in N.Y.

- Worked for Film sound tracks and music creation for the independent film “Noir et bleu” by Jean-Yves Vigee / in N.Y.
> The theme song created for the film : “A blue flower ” - Written, Composed, Sung, Played all the musical instruments, Recorded, Produced by SEPHA

1999 - 2003

- The SEPHA’s solo music project "Offbeat Gurl" for EDM/ Acid Dance Music - Music Peformance & Visual Art Show in Sydney and Tokyo

2005

- Guitar Performance and collaboration work in the art project “Red Track” with Display Artist/Sculptor Masato Sasaki/ in Tokyo

2005 - 2008

- The art project "Planet XG" founded by SEPHA, under this project, the following Performing/ Conceptual Art Events were organized, produced, hosted by SEPHA, in Tokyo.

>Performing/ Conceptual Art Event "Release" held in Omotesando, Tokyo. (2005) - organized, produced, hosted, performed.

>Performing/ Conceptual Art Event "Queer Opera" held in Shinjuku, Tokyo. (2006) - organized, produced, hosted, performed.

>Performing/ Comceptual Art Event "Moulin Rouge" held in Shibuya, Tokyo. (2007) - organized, produced, hosted, performed.

>Performing/ Conceptual Art Event "Goddesses of Surrealism" held in Shibaura, Tokyo. (2008) - organized, produced, hosted, performed.

2010

- The Album "SEPHA Style Vol.1/ The Androgynous Sound" released worldwide through online distribution

- The Album "SEPHA Style Vol.2 / Cosmic Language (Cosmic Pop Sunny-side Up)" released worldwide through online distribution

- The Album "SEPHA Style Vol.3 / Cosmic Language (Cosmic Pop Sunny-side down) " released worldwide through online distribution

2012

- A Single Song "Infinite Love" released worldwide through online distribution

2014

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - English Ver.1" released worldwide through online distribution

2015

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - For basic J" released worldwide through online distribution

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - for Events 1" released worldwide through online distribution

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - Emotions J1" released worldwide through online distribution

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - Biz J1" released worldwide through online distribution

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - English Ver.2" released worldwide through online distribution

2016

- The Line Themes of "SHOCKING PINKiee the Cat (1)" released worldwide through online distribution

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - English Ver.3" released worldwide through online distribution

2018

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - For Love J1" released worldwide through online distribution

2019

- The Line Stickers Packs of "SHOCKING PINKiee the Cat - Basic J2" released worldwide through online distribution

2019-2020

- From September 2019 to March 2020, wrote articles under the pen name Tabineco for the online magazine "Waraku" published by Shogakukan, mainly about travels around Japan with Sepha's beloved cat, the Uchu Neco Phoelix (Phoelix the super cat from Outer Space).