Performer, singer, composer and improviser Christine Bertocchi trained in a variety of disciplines before working as a performer for several contemporary theater directors. Based in Burgundy she founded the company D'un Instant à l'autre in 2005, which she co-directs with Guillaume Orti and Didier Petit, and within which she creates her own works and participates in collective projects. She created Voie Ouverte with an improvisation choir and a vocal quartet, a project which was the subject of an educational DVD published by SCEREN-Canopé and the French Ministry of Education in 2009. She is currently preparing a solo, Imbrications, to be premiered in March 2025 at the Art Danse festival, in co-production with Le Dancing CDCN and Ici L'onde CNCM. Christine is also regularly invited by contemporary composers and writers (Isabelle Pinçon, Ghislain Mugneret, Sébastien Gaxie, Fabrice Villard, Pascal Charrier, Jean-Pierre Jullian), A Feldenkrais® practitioner, certified in Voice Anatomy and a trainer in vocal technique and improvisation, she teaches courses for professional artists in music and performing arts, or during training sessions (CFMI, CNFPT, Pôles sup, Afdas courses, Université Paris 8 - Département Danse, Université Paris-Cité, ESM à Dijon, etc.). In 2024, she completed a Master's degree in Musicology with a specialization in Dance at the University of Paris 8, writing a thesis entitled: "Cheminer en compagnie de Meredith Monk, en empruntant des parcours mêlant gestes et voix, à travers composition et pédagogie, with high honors.

Didier Petit was born in Reims in 1962 into a musical environment and began the cello at the age of six. He entered the conservatoire to study the instrument he was to research and work upon in the future. Thanks to his family, Didier was "swimming" in music from a very early age.In 1977, Didier walked out of the conservatoire, to find himself face to face with the world. At this time, he realises that music won't leave him and, feeling a tremendous desire to exceed both physically and mentally, he turns to jazz. Particularly inspired by Sun Ra and his Arkestra and Celestrial Communication Orchestra of Alan Silva in which he played for ten years, he studied at the IACP, became a teacher, then administrator until 1989. Though his friendship with Misha Lobko he was introduced to many european musical improvisers and shared numerous musical experiences with musicians of all over the World as Vladimir Tarasov, Iva Bittova, Daunik Lazro, Bruno Girard, Carlos "Zingaro", Roger Turner, Benat Achiary, François Tusques, Marilyn Crispell, Terje Isungset, Larry Ochs, Evan Parker.. Didier petit also played an important part in organising the festival "decades of improvised music" in 86, create the The WormHoles Festival in 2007. In order to set up something stable, he creates the record label In Situ in 1990 which now comprises 36 titles. An utopist and realist at the same time, Didier petit never loses the taste for risk and imagination. In 2009 he creat the East West collective in Hong Kong for the French May Festival to creat a bridge between two cultures. Since then he travel often in China.Since 2010, he is the artistic consultant for the Observatoire de l’Espace (the art science laboratory of CNES) and for the Sideration Festival. In October 2015 he has fligh with his cosmocello in the zero G plane to experiment music in zero gravity.

Guillaume was born in 1969. He studed in the Conservatoire de Région in Avignon with André Jaume (jazz), Robert Malbec and Jacques Pierson (classical saxophone). Then he moved to Paris in 1989 where he met people who had a strong impact on his evolution such as Benoît Delbecq with whom he started the band Kartet. In the Summer of 1990 he attended to the jazz seminary in Banff (Canada) under Steve Coleman’s supervision, this experience had a crucial impact on his musical development.
In the 90s he played a big part in the improvised music scene around the venue Les Instants Chavirés. He co-founded the Hask Collective in 1993, and Mercoledi & Co in 1996, two entities that always put forward practice and collective creativity.
Both as an improviser and composer, Guillaume works on the relationships between dance/music and text/music. Ha has been working intensively with author Ghislain Mugneret for more than twenty years on amongst others, the projects « à mesure » with Christine Bertocchi (voice) and Eric Chalan (double bass) as well as « Bon voyage », a theatrical concert by Christine Bertocchi.
He’s presently a member of the following bands : Payen/Orti duet, D.U.O. (with Christine Bertocchi), MikMâäk (a 16-piece band), MegaOctet (dir. Andy Emler), Blue Yonder (dir. Emmanuel Scarpa), Twinning …
As a sideman, he has played in different bands including Thôt (dir. Stéphane Payen), More Power (dir. Sylvain Cathala), Caroline 5tet (dir. Sarah Murcia), The Progressive Patriots (dir. Hasse Poulsen), Rouge (dir. Frédéric Bargeon-Briet), Aka Moon... He also took part in several transcultural projects at Fondation Royaumont which were mixing musicians and slammers from African countries and France.
His encounters with musicians throughout Europe gave him the chance to develop long term collaborations with the collectives Octurn and Mâäk in Belgium, Oxymore in The Netherlands or PepaPaïvinen in Finland… In 2012 and 2013 he was artistic director of the European Saxophone Ensemble (12 young europeans coming from twelve different countries on an original repertoire).