Her performances at both internationally renowned and small but exquisite music festivals meet with much acclaim. These include the Schleswig-Holstein Music Festival, the Ruhr Piano Festival, the Festival d’Ile de France, the Central European Festival at Žilina, Slovakia, the Swiss piano festival “Klavierissimo”, and the “Sunnisheimer Klaviertage” in Sinsheim, Germany.
For over 10 years, Alexandra Sostmann has been performing in the internationally successful Duo Villarceaux devoted to piano music for two pianos and for four hands. As in her solo career, her artistic work covers an extremely broad stylistic spectrum. Thus the duo’s repertoire comprises famous compositions for two pianos from the Baroque, Classical and Romantic periods as well as rarely performed modern works and diverse first performances. Besides radio and TV recordings, “Duo Villarceaux” has published several CDs on the Thorofon, Phoenix Edition und TYXart labels with works by Ravel, Debussy, Stravinsky, Rachmaninoff, Piazzolla, Bach and contemporary music. Its CD of Stravinsky’s “Le Sacre du Printemps” met with huge international acclaim. The reviewer of the “American Record Guide” enthused: “… the two young German pianists are excellent – I’ve rarely heard better unison playing or greater understanding of the Stravinsky idiom.”
Since the spring of 2015, Sostmann has been playing regularly in South America. Her first concerts on the South American continent led directly to further engagements. Thus, in the autumn of 2016, she performed at several orchestral concerts in Argentina, including Stravinsky’s Concerto for Piano and Wind Instruments, which she played, among other concert halls, at the well-known coastal town of Mar del Plata. The public and critics were enthusiastic: “… this music was a gift of God …” (“La Capital”, Mar del Plata). In Mar del Plata, Sostmann was officially awarded the status of a “Guest of Honour”, and in the autumn of 2017, she gave a master class there as well as two orchestral concerts (Teatro Colon) of Mozart’s piano concerto KV 466 and Ravel’s Piano Concerto for the Left Hand. In 2018, Sostmann again travelled Argentina with a Mozart programme and continued her successful collaboration with the Sinfónica de Bahía Blanca. She will be touring in the spring of 2019, giving solo recitals in Cordoba and the Teatro Colon among other things. In the autumn she is playing Rachmaninov’s Piano Concerto No. 2 in Cuenca, Ecuador’s UNESCO World Heritage Site.
Alexandra Sostmann is keen to work with composers and artists from other disciplines such as the choreographer and ballet director Jutta Ebenother and the Nordhausen Company in the production of "La dame aux Camélias". As ballet music for her version of the world-famous love story, Ebenother had chosen works by Chopin and Liszt, which Alexandra Sostmann interpreted on the piano live on stage. She can also be heard as a Lieder accompanist with various programmes, such as “Die Winterreise”. The composers with whom she works closely include the internationally renowned Chinese composer Xiaoyong Chen and the jazz pianist and composer Markus Horn, who lectures at Hannover University of Music, Drama and Media.