There's no question about pianist Kateryna Titova's technique in her debut recital, and a good thing, too, since the program consists entirely of works by Rachmaninov, the composer of some of the most transcendentally difficult piano music of the fin de siècle. But no matter what the Russian composer asks for – be it the tumults of notes that open the Allegro agitato of his Second Piano Sonata, the ethereal ostinatos that start the Prélude in G minor, the monumental sonorities that fill the Prélude in C sharp minor, or the feathery arabesques that saturate the composer's transcription of Rimsky-Korsakov's Flight of the Bumblebee – the young Ukrainian-born, German-based pianist nails them all.