Metamorphosis of Vivaldi's Four Seasons is a musical piece featuring guitarist Uli Jon Roth's interpretation of Antonio Vivaldi's work The Four Seasons, in a rock-classical fusion. The album also includes a new concerto, "Metamorphosis". "Metamorphosis" is separated into 24 tracks bridged by soundscapes and narration. It was released in Europe and Japan in 2003, and in North America in 2004.[1]