Isle of the Dead, Op. 29 is a symphonic poem composed by Sergei Rachmaninoff. Rachmaninoff was inspired by Arnold Böcklin's painting, Isle of the Dead, which he saw in Paris in 1907. He concluded the composition while staying in Dresden in 1908. It is considered a classic example of Russian late-Romanticism of the beginning of the 20th century.
The music begins by suggesting the sound of the oars of Charon as they meet the waters of the river Styx. Rachmaninoff then uses a recurring figure in 5/8 time to depict what may be the rowing of the oarsman or the movement of the water, and as in several other of his works, quotes the Dies Irae plainchant, an allusion to death. In contrast to the theme of death, the 5/8 time also depicts breathing, creating a holistic reflection on how life and death are intertwined.
I find this piece quite haunting and melodic. (It's not the whole piece, BTW)