The violin concerto is quite representative of Glazunov's technically brilliant style. There are no pauses or numbered sections in the concerto; it is nevertheless often described as consisting of either three or four movements, which may be variously labeled.[2] The slow second movement is seamlessly inserted by the composer into the middle of the first movement, which is an original and rare structural peculiarity of this composition.
The main cadenza at the end of the first movement was composed by Glazunov himself. It utilizes extensive double-stopping technique and is considered one of the most difficult parts of the concerto.
References
^"In the World of Music", The Daily Standard Union, Brooklyn. 29 October 1911, p. 15