The exceptional pianist follows another, no less exciting musical route in her solo album "Bach – Chopin" (2017), in which she manages in an intelligent and masterly fashion to stress the artistic affinity between these two so different composers. The publication has been highly praised by the press, not just for the ideas behind the selection of works, but also for Sostmann's pianistic elegance and transparency. The fact that Lufthansa has adopted the solo album in its inflight program speaks for itself.
For over 10 years, the artist has been working in another, frequently neglected area of piano music. As co-founder of the internationally successful "Duo Villarceaux", Sostmann has devoted herself to piano music for two pianos and for four hands. Besides radio and TV recordings, the duo has published several CDs on the Thorofon, Phoenix Edition und TYXart labels.
Sostmann performs both as soloist and chamber musician in notable German concert halls and on the international concert stage. Her performances at both internationally prestigious and small but superlative music festivals (e.g. the Schleswig-Holstein Music Festival) meet with much acclaim, as do her regular and exceedingly successful concert tours of South America, where she also holds master classes.