Since 2000 Jonathan has been Principal Pianist of Remix Ensemble Casa da Musica.

With Remix Ensemble, Jonathan has been invited to perform, often as soloist, in Valencia, Rotterdam, Huddersfield, Barcelona, Strasbourg, Paris, Orleans, Rheims, Antwerp, Madrid, Budapest, Norrköping, Vienna, Witten, Berlin, Amsterdam and Brussels. Jonathan has also performed many new commissions and piano solos including most recently 'Islands' by Luca Francesconi for piano and ensemble in the Tonhalle, Zurich.