The Piano Concerto No. 2 in B♭ major, Op. 83, by Johannes Brahms is separated by a gap of 22 years from his first piano concerto. Brahms began work on the piece in 1878 and completed it in 1881 while in Pressbaum near Vienna. It took him three years to work on this concerto, which indicates that he was always self-critical. From Wikipedia
