The Creation structure but may be written by an unknown author. Back in Vienna, Haydn passed it to his friend and sponsor Baron Gottfried van Swieten, who translated and organized it. The sources for the libretto are the two Creation narratives from the Book of Genesis, some Psalms, and John Milton's "Paradise Lost", an epic poem in ten volumes, first published in 1667. The libretto is structured in three parts, the first dealing with the Creation of the universe and the plants, the second with the Creation of the animals, and of man and woman, and the third with Adam and Eve in
The Seasons (Tchaikovsky) to order, and they were a way of supplementing his income. He saw the writing of music to a commission as just as valid as writing music from his own inner inspiration; however, for the former he needed a definite plot or text, a time limit, and the promise of payment at the end. Most of the pieces were in simple ABA form, but each contains a minor melodic masterpiece. The 12 pieces with their subtitles are: A number of musicians have orchestrated Tchaikovsky's pieces. Aleksandr Gauk arranged "The Seasons" for symphony orchestra in 1942. In 2011 Sergei Abir created