Editing Pyotr Ilyich Tchaikovsky (section)

====Rhythm====
[[Rhythm]]ically, Tchaikovsky sometimes experimented with unusual [[Metre (music)|meters]]. More often, he used a firm, regular meter, a practice that served him well in dance music. At times, his rhythms became pronounced enough to become the main expressive agent of the music. They also became a means, found typically in Russian folk music, of simulating movement or progression in large-scale symphonic movements—a "synthetic propulsion", as Brown phrases it, which substituted for the momentum that would be created in strict sonata form by the interaction of melodic or motivic elements. This interaction generally does not take place in Russian music.<ref>Brown, ''New Grove'' vol. 18, p. 628; ''Final Years'', 424.</ref> (For more on this, please see [[#Repetition|Repetition]] below.)