Juliana Koch is Principal Oboe of the London Symphony Orchestra, and since the ARD International Music Competition 2017 she has been in demand as a soloist all over Europe. Juliana was appointed Professor of Oboe at the Royal College of Music, London, in 2018.

For her debut at the Berlin Philharmonie in 2019, Juliana performed the Richard Strauss Oboe concerto together with the Deutsches Symphonie-Orchester Berlin. Other solo engagements include appearances with the Symphonieorchester des Bayerischen Rundfunks at the Philharmonie im Gasteig (Munich), the London Symphony Orchestra, the Münchener Kammerorchester, Tapiola Sinfonietta, Sinfonia Lahti and the Hungarian National Philharmonic, among others.

Juliana is an active chamber musician and has performed at several prestigious festivals around the world, including Musica Viva’s Huntingon Estate Music Festival in Australia, Lucerne Festival and Bachfest Leipzig. She has appeared in recital performances in the Konzerthalle Bamberg, NDR Hannover and Deutschlandfunk Köln.

As a soloist Juliana has recorded for Chandos, BIS, Wergo, cpo and LSO Live labels - including first recordings of the Ruth Gipps and Enjott Schneider oboe concertos. Her recording of the Dutilleux oboe Sonata has been selected for a BBC Music Magazine Award.

Juliana has been guest Principal Oboe with some of the world’s most renowned orchestras, including the Symphonieorchester des Bayerischen Rundfunks, the Philadelphia Orchestra, the Chamber Orchestra of Europe, Mahler Chamber Orchestra and the Los Angeles Philharmonic Orchestra.
She has previously held Principal Oboe positions with the Royal Danish Orchestra and Filarmonica della Scala, and has worked with many of the world’s leading conductors, including Sir Simon Rattle, Sir Antonio Pappano, Bernhard Haitink, Kirill Petrenko, Daniel Barenboim, Riccardo Chailly, Pierre Boulez, Yannick Nézet-Séguin, Zubin Mehta, Esa-Pekka Salonen, Sir John Eliot Gardiner and Valery Gergiev.

Juliana has studied with François Leleux in Munich and Fabian Menzel in Frankfurt. Additionally she has worked with Jacques Tys in Paris. In her time in Munich, she also studied Baroque Oboe with Saskia Fikentscher.
Juliana plays a Marigaux M2 Oboe.

Johannes Schlaefli is currently serving as “artistic director” of the National Swiss Youth Symphony Orchestra and of “Alumni-Symphony-Orchestra Zürich”. He acts as Principal Guest Professor for the Conducting Class at the Music University of Frankfurt.

As one of the most highly sought after conducting teachers, Schlaefli is in demand throughout the world and was invited by institutions such as the Sibelius Academy Helinski, the Juilliard-School New York, the City of Birmingham Symphony Orchestra, the Music Universities of Vienna, Berlin, Leipzig, Hamburg, Frankfurt, Manchester, Copenhagen, and Paris. He also serves as “head of teaching” at the Gstaad Menuhin Festival Conducting Academy, and works together with the prestigious “Dirigentenforum” in Germany as well as with the Norwegian “Dirigentloftet” in Oslo.

Johannes Schlaefli was the co-founder of Basel Chamber Orchestra in 1984. From 1995-2013 he was chief conductor of Bern Chamber Orchestra before leading the Mannheim chamber orchestra as chief conductor from 2013-2019. Since 2018 he was chief conductor of the symphony orchestra “Collegium Musicum Basel” and ended his tenure in summer 2024. As a guest conductor, he has performed with many orchestras worldwide.