In July 2006 the band formerly known as Rhapsody changed their name to Rhapsody of Fire due to trademark issues. The band's website goes into further detail: The band members consider this a great new start, reflecting the emboldened and increasingly grandiose direction that their music has taken. "The power of the Dragonflame will burn brighter than ever before," says guitarist/songwriter Luca Turilli. Keyboardist/songwriter Alex Staropoli adds, "The name Rhapsody of Fire better represents the energy that has always been present in this band and its music." The band released Triumph or Agony, on September 25, 2006, in Europe. The second chapter in The Dark Secret Saga, Triumph or Agony, continues the bombastic Rhapsody of Fire tradition with a live 70-piece orchestra and choir as Turilli and Staropoli continued to self-produce the band's work with the assistance of co-producer Sascha Paeth. New songs include "Silent Dream", "Son of Pain" and the epic 16-minute-long "The Mystic Prophecy of the Demonknight", an example of a cinema soundtrack adapted to a metal song. In addition, vocalist Fabio Lione gave his songwriting debut for Rhapsody of Fire with the song "Il canto del vento". In June 2008, Luca Turilli reported on the band's official website about a "hard legal fight with Magic Circle Music and his main representative Mr. Joey DeMaio". Since then, the band went on a hiatus for nearly one and a half years. Any studio or live activity was suspended for the period. Luca Turilli concentrated on his solo albums, Fabio Lione collaborated with Vision Divine and Kamelot, Alex Holzwarth collaborated with his brother Oliver, and Staropoli also announced his plans to record a solo album. In late 2009 Limb Music re-released their back-catalogue from 1997 to 2001, along with the compilation album Tales from the Emerald Sword Saga on digital music stores.

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In addition, vocalist Fabio Lione gave his songwriting debut for Rhapsody of Fire with the song "Il canto del vento