This piece was written for Katherine Skorzewski, cellist, on commission of her son, Jan, as a 60th birthday. He said he was a poor clarinet player; his sister was a pretty good pianist; and his mother was a professional cellist. He was hoping I could write something that the three of them could play together so I wrote the trio, only it turned out so well, I wrote two versions for the clarinet part, this one being professional level