Complex sentence: However, Chopin himself seems to have been very proud of it: he told Aleksander Hoffmann: "This is the very first piece I shall play in my first concert upon returning home to a free Warsaw".
Split into simpler sentences: However, Chopin himself seems to have been very proud of it. He told Aleksander Hoffmann: "This is the very first piece I shall play in my first concert upon returning home to a free Warsaw".