Complex sentence: The soundtrack album of the film was released in 1957 in mono, and years later, in stereo, on a 3-LP album set that also contained a booklet written by Deems Taylor with illustrative artwork from the film.
Split into simpler sentences: The soundtrack album of the film was released in 1957 in mono, and years later, in stereo. Both were issued as a 3-LP album set that also contained a booklet written by Deems Taylor with illustrative artwork from the film.