Frédéric Chopin wrote 57 mazurkas, covering 20 of the 24 major and minor keys. I’m currently doing analytical annotations of the whole corpus in context of a musicological research project at TU Dresden, adding Roman numerals to every single chord in order to make the music accessible to computational modeling. Moreover, my bulky thesis chapter on Nikolai Medtner’s G minor Sonata, Op. 22, is approaching its final shape, incorporating Schenkerian and metrotechtonic perspectives. What a stunning masterpiece of musical architecture!