The Piano Concerto in D flat major, op. 6, has a long history. Begun in 1887 and completed in 1889, it was revised and published in 1890, only to be revised yet again and republished in 1901. The work was dedicated to the world-famous Norwegian pianist Erika Nissen. The formal language of the piano concerto is closely analogous to that of the symphonies. There are parallels in the construction of the melody, in the harmonies and in the scale of the work, and there is the same careful blending of the old and the new. The way in which the melody is built up is typical of the late Romantic era, and the transforming of thematic material throughout the movements is clearly a product of the influence of Liszt and Wagner, while the basic form is that of the older tradition of Classicism, with a first and final movement in sonata form, although the second movement is in an unusual tripartite form. The piano concerto was nicknamed "the Cigantic" after its first performance, partly on account of its large proportions and partly as a description of the piano part. The passage-work, the arpeggios, and other techniques are exploited effectively and in keeping with the thematic ideas involved. The concerto achieved instant success, and remained one of Sinding's most frequently performed works.