With Endless Forms Most Beautiful, Nightwish have created what could well be the defining album of their career. A brave and sprawling work, approaching an hour and a half in length, it effortlessly combines elements of folk and classical with heavy metal. A relatively new recruit to the band after the departure of Anette Olzon, Floor Jansen has already proved popular with fans—here she provides beguiling vocals reaching the operatic, perfectly complementing the complex arrangements of songwriter Tuomas Holopaine.