I have played these Sonatas briefly just once with Bettina Kiefner whilst on a "Re-union visit" to her and Elisabeth Book in Münster, Germans in May 2000. The sonatas comprise
Sonata V in F major (Allegro, Grave, Allegro)
Sonata VI in D minor (Adagio, Allegro, Largo, Allegro)
Sonata VII in F major (Allegro, Largo, Allegro, Grave, Allegro)
Sonata VIII in F major (Andante, Presto)
They have much the same character as the sonatas I am very familiar with in Zwölf Sonaten IX-XII.
