In the 2020/21 season, Ksenija has performed with – amongst others — Deutsche Kammerphilharmonie Bremen (Paavo Järvi), National Orchestra of Belgium (Aziz Shokhakimov), has been on tour in France with Orchestre National d’Ile de France (Mihhail Gerts), and on a European tour with Münchener Kammerorchester and MILOŠ in celebration of Piazzolla’s centenary. She will continue her collaboration with artistic colleagues, touring with Avi Avital for appearances including Wigmore Hall and at the Bodensee Festival; and with Camille Thomas performing in KKL, Lucerne. Ksenija performed also perform a solo recital programme in Carnegie Hall, Princeton, and Library of Congress, Washington.
Ksenija works with leading orchestras including NDR Elbphilharmonie Orchester, Orchestre Philharmonique du Luxembourg, MDR Sinfonieorchester [Leipzig], Stuttgarter Philharmoniker, Kammerorchester des Bayerischen Rudfunks, Atlanta Symphony, Tonhalle Orchester-Zurich, NHK Symphony Orchestra, Tokyo and Hong Kong Philharmonic Orchestra, and prestigious conductors including Paavo Järvi, Thomas Hengelbrock, Vasily Petrenko, Kristjan Järvi, Michał Nesterowicz and Jan Willem de Vriend.
She regularly collaborates with Avi Avital, Nemanja Radulovic, Andreas Ottensamer, Miloš Karadaglić, Camille Thomas, Leticia Moreno, Goldmund Quartet, Tine Thing Helseth, Brazilian DJ Gui Borratto, Juan Diego Flórez, Nicola Benedetti and Joseph Calleja. Ksenija often appears at Ravinia, Cheltenham, Mostly Mozart, Schleswig-Holstein, Gstaad Menuhin, Verbier and Rheingau music festivals.
Ksenija released her latest album Piazzola Reflections (Alpha) in 2021. This follows her previous successful releases: Classical Accordion (Champs Hill Records, 2011); Fairy Tales (Champs Hill Records, 2013) recorded with BBC National Orchestra of Wales/Clark Rundel; and Carmen (Deutsche Grammophon, 2016) — a new take on the score — recorded with the Nuevo Mundo band and the Borusan Istanbul Philharmonic Orchestra/Sascha Goetzel. For the latter, Ksenija won the ECHO prize for Instrumentalist of the Year in 2017.
Encouraged to take up the instrument by her grandmother steeped in the folk tradition of accordion playing, Ksenija started to play the instrument aged six under the guidance of Marija Gasele in her hometown of Riga. Her quest for more exposure to both classical and contemporary repertoire took her to London where she became a prize-winning undergraduate and postgraduate at the Royal Academy of Music studying under Owen Murray.
In 2012, Ksenija Sidorova became the first International Award winner of the Bryn Terfel Foundation. Three years later she performed next to Sting on the stage of the Royal Albert Hall in honour of Bryn Terfel's 50th birthday. She is a recipient of both the Philharmonia Orchestra’s Martin Musical Scholarship and Friends of the Philharmonia Award, as well as the Worshipful Company of Musicians Silver Medal. Since 2016, Ksenija has been an Associate of the Royal Academy of Music.