I want to know the answer to the following question:
Of what venue was Chopin an often invited guest?
All the background I'm provided with is that "Influences on his compositional style include Polish folk music, the classical tradition of J. S. Bach, Mozart and Schubert, the music of all of whom he admired, as well as the Paris salons where he was a frequent guest.". Is that enough to answer the question?
Answer: yes