Hanspeter Oggier and Mathieu Rouquié created the  Duo Rythmosis in 2011. They wish to share their passion, to maintain the musical language variety and to let live an accessible music.

The quite unheard union of the Pan flute and the cello implies the production of specific and exclusive repertoire, with many expression possibilities. It offers a selection of attractive and subtle music, within everybody’s reach.

This repertoire can be adjusted to any circumstances and includes classical music pieces, but also well fixed in mind popular music and traditional music pieces for a fascinating and uncommon result.


Hanspeter Oggier Pan Flute


Hanspeter Oggier was born in Valais, Switzerland, and starts the Pan Flute study in his homeland before receiving Simion “Syrinx” Stanciu ‘s teaching in Geneva. Hanspeter Oggier pursues his education from 2002 in “la Sociéte Suisse de Pédagogie Musicale” (SSPM) in Geneva and Zurich and gets a teaching degree in 2006. He gets a music performing diploma the following year (with professor Kiyoshi Kasai) and finishes his musical education in 2010 in the Hochschule Luzern-Musik where he obtains a Master degree of Arts mit Major Performance Klassik Panflöte with his professor, the flutist Janne Thomsen.

Though Hanspeter Oggier shows a specific interest into the contemporary music dedicated to his instrument keeping a narrow collaboration with many composers, ancient music has become through the years the keystone of his work as researcher and performer, particularly further to the determining meeting with sound engineer Jean-Daniel Noir, harpsichordist and pianofortist Michel Kiener, and music instrument maker and musicologist Luc Breton. He is one of the few Pan flutist playing with baroque tuned instruments.

As the Ensemble Fratres, Hanspeter Oggier works in a way consisting in using the common language features into the musical language. He is inspired for this by the Renaissance musicians who constantly tried to imitate human voice through their music, and by the records from traditional music. Through a specific musical language and with old style made instruments – for instance, the naï, a Romanian pan flute - he likes to connect baroque music to traditional music.

Laureate of the Kiefer Hablitzel Foundation in 2007 and of the Raiffeisen Kulturstiftung Mischabel- Matterhorn in 2014, Hanspeter Oggier has built a career as a chamber musician and a soloist. He was part of the Musik an der ETH series of concerts in 2009, he successfully works with Ensemble Fratres (2010 and 2014), and he has distinguished himself at the Flötenfestival Freiburg (2013) at the invitation of the Deutsche Gesellschaft für Flöte. He has had the opportunity of playing in many countries such as Germany, France, Spain and Austria.

Musica Nobilis released his first record Arpeggione in 2008, with Marielle Oggier (flute) and Mathias Clausen (piano). Later, he recorded “Vivaldi Pan Flute Concertos” and “Telemann Music for Flute” with the Ensemble Fratres, and released by Brilliant Classics in 2015 and 2016.

Hanspeter Oggier and cellist Mathieu Rouquié form the Duo Rythmosis, and share an inventive music with a chosen audience in atypical places. In addition to his concert activities, he teaches panpipes at the Hochschule Luzern-Musik. 


Mathieu Rouquié Cello


Mathieu Rouquié obtains a Soloist degree (2005), a string quartet degree (2006), and a teaching degree (2008) in Haute Ecole de Musique de Genève, and he leads a successful cellist career.

He studies modern cello in Perpignan and Montpellier Conservatories, and then in the Haute Ecole de Musique in Geneva with Daniel Grogurin and François Guye. He shows a significant interest in contemporary music.

As an orchestra musician, he has played with the Orchestre Français des Jeunes in 2000, and with the Perpignan Languedoc Roussillon Orchestra, the Instrumental Ensemble of Geneva Conservatory, the Geneva Chamber Orchestra and the Orchestre de la Suisse Romande among others. On these occasions, he worked with directors such as Stephan Asbury, Michael Hofstetter, Pascal Crittin, Emmanuel Krivine, or Michel Corboz.

As a chamber musician, he is rewarded by the first distinction at the Concours International de Musique de Chambre with harp in Arles, France, in 1995. He entered the Quartet Fratres in 2004 who wins the first prize at the Hungarian Music Contest in 2005, the first prize at the Chamber Music Contest Musica Antiqua in Bruges in 2006, and an honour diploma at the International Chamber Music Contest “Joseph Joachim” in Weimar in 2006 as well. Mathieu Rouquié is laureate of three scholarships and granted to the Banff Centre for the Arts (Alberta, Canada) for a three months artistic residency in 2009.

Mathieu Rouquié shows enthusiasm for ancient music and historical performing practice. He often plays with Bartold Kuijken, Gabriel Garrido, Florence Malgoire, Flavio Losco, Pierre-Louis Rétat, Leonardo Garcia Alarcon, Dimitri Zinkovski, and Mikhaïl Zhuravlev. Besides, he learnt from the Centre Européen de Recherche et de Pratique Musicale de Saintes, from Philippe Herreweghe’s Jeune Orchestre Atlantique, from the baroque ensemble Il Gardellino – Bruxelles, from l’Ensemble Baroque du Léman – Lausanne, from the ensemble Chioro d’Oro, and from the ensemble Tempesta Basel (Muriel Rochat, recorder).

He loves accompanying singers, playing the continuo. Therefore, he performed with lute player Luca Pianca and with singers Roberta Invernizzi and Sonia Prina at the Italian Culture Institute in Madrid and at the Opera in Clermont-Ferrand.

His collaborations with harpsichordist and pianofortist Michel Kiener and with instrument maker Luc Breton confirm his attraction for a musical approach through a traditional way. His project of playing the Six Cello Suites by Johann Sebastian Bach took its roots from these meetings and from his education. His purpose is to put into light the ins and outs of these Six Cello Suites through concerts and conferences every years. Along the same lines as ancient musical language, he is learning the hunting horn and its repertory.

As an independent musician, he runs many projects and releases several recording with remarkable musicians such as Hanspeter Oggier, the Ensemble Fratres which he co-founded in 2004, harpist Nathalie Chatelain, violinist Maxime Alliot whit whom he founded the duet M&M, the Tempesta Basel,

Mathieu Rouquié also likes to teach to young musicians or experienced musicians in order to pass his passion.