"Carol of the Bells" is a popular Christmas carol which is based on the Ukrainian song called "Shchedryk" (Ukrainian: Щедрик). The "Carol of the Bells" uses the original melody from "Shchedryk," written by the Ukrainian composer Mykola Leontovych in 1914. Ukrainian "Shchedryk" was adapted as an English Christmas carol, "Carol of the Bells", by Peter J. Wilhousky of NBC Radio, following a performance of the original song by the Ukrainian National Chorus at Carnegie Hall on October 5, 1922. Peter J. Wilhousky, American composer, music educator, and choral conductor of Ukrainian descent, wrote the lyrics in English. The Ukrainian music is in the public domain; Wilhousky's lyrics, however, are under copyright owned by Carl Fischer Music. The music is based on a four-note ostinato and is in 3 4 time signature, with the B-flat bell pealing in 6 8 time. The carol is metrically bistable, and a listener can focus on either measure or switch between them. It has been adapted for many genres, including: classical, metal, jazz, country music, rock, trap, and pop. The piece also features in films, television shows, and parodies. From Wikipedia
