B minor
The Twelfth Sonata, entitled "Romantica" in B minor, Op. 53, No. 1, was completed at the end of 1930, along with its twin. It was premièred in Glasgow in 1931. Returning to a four-movement form, it consists of a "Romance" (B minor), "Scherzo" (E minor), "Meditazione" (B minor), and "Finale" (B minor). The ending quotes his Sonata-Skazka, Op. 25, No. 1.