I don't believe Chopin did any songwriting, at least none that I've heard of (songs have words). He did write one of the largest bodies of superb piano pieces that have ever been written, though,...
He wrote a group of minuets in Op. 64, one of them was the Minute Waltz (No. 1), which is quite famous.
He also wrote a ton of preludes in Op. 20, especially the C Minor one, which is also a major...
That one song that other one that other one that other one that other one that other one that other one that other one that other one that other one that other one that other one that other one that...