In her catalogue of works one can find a rather popular Piano trio in D minor, shed-loads of songs, an oratorio on scenes from the Bible, more songs, some string quartet writing and a fair amount of little piano pieces.
If I am to be honest with you, I'd expect this composer to be much more well known, like her brother. The piano sonata in G minor is a pianistic and grand piece. In spite of this, its short, sweet melodies make is somewhat fluffy and feathery, despite the rather sullen key of G minor.
This piece in its entirety is unavailable on youtube, apart from the first movement:
https://www.youtube.com/watch?v=UtlCpIoWQUo (Courtesy of Demian Panello)
However, the whole piece, with more piano Stücke, is contained in a fine album by the pianist Beatrice Rauch, who performs the pieces sublimely. Thoroughly worth listening to.