The Art of War (Sabaton album) the First and Second World Wars where Sun Tzu's tactics were applied. The Swedish national anthem from Sweden Rock '09 (found on the Re-Armed edition) was the only song on which bassist Pär Sundström has contributed vocals until 2012, when the line-up change required Sundström to step up to the microphone on a more permanent basis. Spoken quotes from Sun Tzu's The Art of War can be heard in songs such as "Sun Tzu Says", "The Art of War", "Unbreakable", "The Nature of Warfare", "The Price of a Mile", "Firestorm", "Cliffs of Gallipoli" and "A Secret". These quotes are taken
The Book of Taliesyn band's singer Rod Evans are very functional to the music and the marketing Deep Purple's record label was building up for the American hippie audience. Evans took inspiration for the fantasy-themed "Listen, Learn, Read On", which contains lyrical reference to the album's title, from the 14th-century Welsh manuscript Book of Taliesin, a collection of poems attributed to the 6th-century poet Taliesin. The title and cover art of the album were also inspired by the manuscript. Instead psychedelia and its rituals play a large part in the lyrics of "Shield". Simper thinks that Evans' lyrics are "far better than anything (...)