Hi kelvinczech,
I'm glad you enjoyed this prelude so much, and thank you for the nice compliment on my playing.
The prelude is written in 3/4 time and the tempo is a slow andante. The three beats in the left hand are usually triplets, which make the sound more complex than, say, the simpler "one-two-three" feel of the well-known "Blue Danube Waltz". But I think this prelude could be visualized as a Viennese Waltz, for example. If you listen to Scriabin's "Waltz", Op. 38, it too has a great deal of dense complexity to it, yet in the overall sound it's unmistakably a waltz. Liszt's "Mephisto Waltz" is another good illustration, as would be Debussy's sentimental "La plue que lent" or Bortkiewicz's "Prelude", Op. 33, No. 8. Sometimes composers might conjure waltzes that are not really suitable for actual dancing--yet they still entrance the listeners with their wonderful imagery. I might be inclined to call this genre concert waltzes as opposed to pure dance forms that far more clearly lend themselves to the ballroom.
Thanks for listening.
David