I want to know the answer to the following question:
To whom did Chopin reveal in letters which parts of his work were about the singing student he was infatuated with?
All the background I'm provided with is that "In letters to Woyciechowski, he indicated which of his works, and even which of their passages, were influenced by his fascination with her; his letter of 15 May 1830 revealed that the slow movement (Larghetto) of his Piano Concerto No. 1 (in E minor) was secretly dedicated to her – "It should be like dreaming in beautiful springtime – by moonlight."". Is that enough to answer the question?
Answer: no