About KSQ

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The Kaleidoscope String Quartet (KSQ) boldly penetrates atypical territories of conventional string quartets.

KSQ performs regularly, locally and abroad, at prestigious festivals including the Lucerne Festival Lounge, Murten Classics, Cully Jazz, Jazz Festival Willisau, Langnau Jazz Nights as well as at renowned jazz clubs such as Moods Jazz Club Zurich, BeJazz Bern, Jena Baths and the Culture Cafe of the Elbe Philharmonic Hall in Hamburg. Their repertoire consists of original compositions written by violinist Simon Heggendorn and violist David Snow.
The quartet, whose members are professionally trained in both classical and jazz, have come to define their own musical language by way of skillfully eliminating musical boundaries and constantly exploring the connective ties to other music genres such as pop and rock. Edgy grooves rise and fall between imaginative soundscapes while folkloric melodies encounter adventurously experimental improvisations.

They see themselves more as a band than as a quartet in the classical sense, taking to the stage without note stands.
In the KSQ's atmospheric and dynamically charged live performances, spontaneity and audience proximity all come together to create a uniquely woven unit that is unanimously praised by the press time and time again.

As winners of the ZKB-Jazz Prize 2012, the KSQ joins the illustrious group of internationally successful Swiss ensembles and bands representing and forming a lasting impact on the Swiss music scene. The quartet proves that a traditional, "classic ensemble" is also able to position itself within the realm of jazz. "Never in the history of the ZKB Jazz-Prize has there been a winner that has earned this award with such agility" (Daily News Zurich).The release tour of their new CD will take place in 2015 Berlin, Prague, Zurich and Bern.

Simon Enno

Simon Heggendorn

Violin & Composition

Simon Heggendorn is a Swiss violinist and composer. In 2009 he completed his studies in violin performance, improvisation and composition. He has been greatly influenced by artists such as Daniel Zisman and Benjamin Schmid in classical music, tango and jazz-violin, and Andy Scherrer, Francis Coletta and Frank Sikora in jazz improvisation and composition. As an open-minded freelance musician he performs in various bands and orchestras ranging from classical, contemporary and baroque music to folk jazz and flamenco. He is a member of the Ensemble Cinéphonique for pop and film music recordings. In the musician's collective «Jazzwerkstatt Bern» he is one of the representing string players where he has performed with Silvie Courvoisier, Efrat Alony and many others.


Ronny Enno

Ronny Spiegel


Ronny Spiegel, born in Winterthur (CH) in 1982, began taking violin lessons at the age of six with Katharina Hardy. 1993 he was accepted at the Yehudi Menuhin School in Great Britain where he was a student of Natascha Boyarskaya. Ronny Spiegel graduated at the Haute-Ecole de music Lausanne (CH) as student of Gyulla Stuller. Already during his studies not only the classical repertoire was in the focus. Always to discover and to be inspired by the new is a musical credo of his. Nowadays Ronny Spiegel is activ as a freelance musician within various genres. Numerous concerts with the successful Balkan Quartet musique en route, the Kaleidoscope String Quartet, or the piano quartet s-ensemble give distinction to his musical activity.  Further he performs as guest musician with the Swiss Chamber Artists CHAARTS and the La Folia Barockorchester


David Enno

David Schnee

Viola & Composition

David Schnee is a freelance viola-player from Zurich who studied in Bern and Zurich. As a very active and versatile musician he pursues musical projects which range from chamber music, jazz, contemporary to film music. As a sought-after studio musician he has done recordings for a multitude of Swiss and international movies, as well as for numerous of Switzerland's biggest pop-bands. In 2013 he founded the Ensemble Cinéphonique, which specialises in recordings for film, media and pop. As a founding member of the Galatea String Quartet he was touring regularly and worldwide from 2005 until 2013. The Quartet has won several prices at international competitions, as well as a prestigious ECHO-Prize in Germany. In 2013, David Schnee lived in Berlin for 5 month as a resident of the Zurich Arts Council.


Sebastian Enno

Sebastian Braun


Sebastian Braun (*1990) wurde in Winterthur geboren und lebt heute in Basel. Im Alter von fünf Jahren erhielt er am Konservatorium Winterthur seinen ersten Cellounterricht bei Emanuel Rütsche. Sein Master-Studium in Music Performance bei Thomas Demenga an der Musikakademie Basel und sein Bachelor-Studium an der Hochschule für Musik und darstellende Kunst in Stuttgart schloss er mit Höchstnote ab. Zurzeit befindet er sich im dritten Semester des Master-Studiums in Pädagogik an der Musikakademie Basel. Sebastian war Mitglied des Gustav Mahler Jugendsinfonieorchesters und wirkte in mehreren Ensembles mit, so auch als Solocellist der Chamber Academy Basel und des Young Eurasian Soloist Kammerorchesters. Für die Saison 2015/2016 war er Praktikant des Sinfonieorchester Basel. Er war Mitglied des Schnitzler Quartetts, mit dem er mehrere Rundfunk CD-Produktionen für den Westdeutschen Rundfunk einspielte und regelmässig im In- und Ausland konzertierte. Bei mehreren Solo- und Kammermusik-Wettbewerben gewann er erste Preise. Sebastian Braun ist 2. Preisträger des Orpheus Swiss Chamber Music Competition 2016 und Stipendiat des Migros-Kulturprozent, des Rahn Kulturfonds, der Stiftung Basler Orchester-Gesellschaft und der PE-Förderungen in Mannheim. Im Frühjahr 2016 gewann er den ersten Preis beim internationalen Domnick Cello Wettbeweb für Neue Musik.