Wilhelm Karl Friedrich Fitzenhagen (Sept. 15, 1848 – Feb. 14, 1890), was a German cellist, composer and instructor, best known today as the dedicatee of Pyotr Ilyich Tchaikovsky's Variations on a Rococo Theme.
Fitzenhagen gave the first performance of Tchaikovsky's Variations on a Rococo Theme, which was dedicated to him, on November 30, 1877. The composer had already allowed his soloist a great deal of freedom in modifying the solo part, but Fitzenhagen chose additionally to alter the sequence of variations, possibly for the opportunity of soloistic display. The D minor variation which had been third in Tchaikovsky's original order was switched with the seventh and an eighth varition dropped altogether. Fitzenhagen may have felt justified by these efforts by the audience reaction after a performance at the Wiesbaden Festival in June 1879, writing to Tchaikovsky, 'I produced a furore with your variations. I pleased so greatly that I was recalled three times, and after the Andante variation (D minor) there was stormy applause. [Composer Franz] Liszt said to me, 'You carried me away! You played splendidly,' and regarding your piece he observed: 'Now there, at least, is real music.''
How seriously Tchaikovsky may have viewed Fitzenhagen's more radical alterations is difficult to say. After the cello and piano arrangement appeared in Fitzenhagen's ordering of variations in 1878, Tchaikovsky complained to his publisher P. Jurgenson that Fitzenhagen had proofread the piece badly. Later, however, he may have come to regret Fitzenhagen's license with the piece more negatively. When cellist Anatoliy Brandukov approached Tchaikovsky just before the full score was published in 1889, he found the composer 'very upset, looking as though he was ill. When I asked: 'What's the matter with you?' Pyotr Ilyich, pointing to the writing table, said: 'That idiot Fitzenhagen's been here. Look what he's done to my piece—he's altered everything!' When I asked what action he was going to take concerning this composition, Pyotr Ilyich replied: 'The devil take it! Let it stand as it is!''
Fitzenhagen's 1878 order was retained and the work became part of the standard repertoire. The variations are still played in Fitzenhagen's sequence to the present day, despite the subsequent discovery and restoration of the composer's original order. (Hide extended text)...(Read all) Source : Wikipedia