As host of The Podcast And The Pendulum, Simon McMurdo brings a dedicated fan’s enthusiasm and a critic’s insight to this look at the recorded output of Nightwish. It’s easy for song-by-song books to become a catalogue, but McMurdo offers cogent analysis, charting not just the changing personnel and the abrupt dismissals of Tarja Turunen and Anette Olzon, but diving into the meanings and inspirations behind Tuomas Holopainen’s compositions.