The most famous composition from "Modest Mussorgsky
The original composition was a piano duo, and years later it was orchestrated by Ravel (Who became famous thanks to his bolero).
This composition have been arranged also by the progressive rock band "E.L.P." (Emmerson, Lake and Palmer) who took the adventure of writing lyrics for it, and destroying the sublime original version.
1975, Tomita, made his emotional and aural enhanced arrangement of the composition, giving the world the best version to listen for the generations to come (if they are a bit open to really original work and can enjoy Mussorgsky's original version, or course).