includes Nguyễn Thanh Thủy (plays đàn tranh,) Ngô Trà My (plays đàn bầu,) Stefan Östersjö (plays string instruments) formed since 2006. Since the beginning, the group works with Henrik Frisk, a Swedish composer and electronic improvisor. The name of the group emanates from a composition by Henrik, premiered in Ha Noi in 2006. The name refers to the six tones in Vietnamese language.
2009, tour in Scandinavia with new works by Malin Bång, Love Mangs, Henrik Denerin and Kent Olofsson.
Hanoi New Music Meeting, The Six Tones played with guest musicians from five countries in Europe and from Vietnam in two productions that were presented both in Hanoi and Ho Chi Minh City. 

2010, performance at Hanoi Sound Stuff Festival and the premiere of there music for IDIOMS by Richard Karpen in Meany Hall, University of Washington, Seattle. 
2011, a piece of experimental music theatre, tour in Sweden. Text and director: Jörgen Dahlqvist. Music: Richard Karpen and The Six Tones. Actors: Pia Örjansdotter (Swedish), Valerie Curtis-Newton (USA) and Nguyễn Đức Mạnh (Vietnam). 
          a festival at the Inter Arts Center, Malmö, Sweden, where The Six Tones played with many guest artists                       including Wu Wei, Kalina Goudeva, Per-Anders Nilsson, Jakob Riis and many others. Two CDs and a DVD were released from the event in the multimedia publication titled (re)thinking Improvisation: artistic explorations and conceptual writing (Lund University Press), 2011
2012, premiered in Hanoi. This is an installation built on a concept by Nguyễn Thanh Thủy and developed in collaboration between The Six Tones, the choreographer Marie Fahlin and sound artist Matt Wright. The concept for Inside/Outside reflects an analysis of the choreography of gender (Foster 1998) in the performance of traditional Vietnamese music. On March 6 2014, a new video installation version of Inside/Outside was presented for the first time in a new exhibition at the museum of world cultures in Goteborg and Stockholm, Sweden. 
2013-14, a film developed in collaboration between the Swedish playwright and director Jörgen Dahlqvist, the American composer Richard Karpen, the Swedish choreographer Marie Fahlin and the Vietnamese/Swedish group The Six Tones. The film draws on scenes in seven plays in traditional Vietnamese Tuồng theatre and has original music and choreography that develops these sources in different ways. The present paper discusses the making of the film and its relation to gesture in traditional Vietnamese theatre.
2013, premiere of the installation and performance work set on the threshold between gesture and sound and between the worlds of the dead and the living. The three musicians of the Vietnamese/Swedish group The Six Tones move through the subterranean landscape of the dismantled R1 nuclear reactor like mythological after-images. Fragments from the myth of Orpheus are double-exposed with the tale of a beheaded ghost from Vietnamese Tuong theatre. Evoked by the potential danger of the location, the audience is invited to explore an interactive and open form installation that relates to ancient myth and its bearings on experimental art of today. The choreographies and video art all relate to the gestural and conceptual content of Toccata Orpheus, a composition for guitar solo by the German composer Rolf Riehm. Choreography by Marie Fahlin. Video by Anders Elberling and Jörgen Dahlqvist. Sound and light installation by Gerhard Eckel. Music by Rolf Riehm, Henrik Frisk (all live electronics), Richard Karpen and The Six Tones. Light design by Sutoda. 
2014 (work in progress), an installation and video art project that deals with the dissolution of the relationship with tradition that urbanization brings. In May and June of 2014 The Six Tones worked with Jörgen Dahlqvist in Hanoi, making documentary recordings an d interviews and eventually played  the pre-premiere of materials from the piece. This is the third installment in a series of experimental music theatre productions on migration entitled "Arrival Cities". Music by Kent Olofsson. Director Jörgen Dahlqvist. The premiere is scheduled to Dec 2014 in Sweden but later installments will include more video and orchestra.

Arrival Cities: Hanoi deals with the dissolution of the relationship with tradition that urbanization brings. This is the third installment in a series of experimental music theatre productions on migration entitled "Arrival Cities". Arrival Cities: Hanoi builds a narrative from the life story of Lưu Ngọc Nam, an actor and costume maker in traditional Tuồng theatre. In Arrival Cities, his travels in the country, the homesickness and the tension between traditions that he experiences becomes the source for a further exploration of hand gesture in Tuồng theatre and an expansive portrait of a city vibrant of memories from the Vietnamese countryside.