How many variations are there in the Passacaglia by Haendel-Halvorsen?

The Passacaglia by Handel-Halvorsen features a total of 20 variations. This piece is a collaboration based on Handel's original Passacaglia in G minor, and Halvorsen expanded it with his own variations for violin and piano. The work is celebrated for its intricate interplay between the violin and piano, showcasing both technical skill and expressive depth.