Awesome Music / Ar tonelico Qoga: Knell of Ar Ciel

• EXEC_FLIP_ARPHAGE/. plays during a very climactic part of the story, and the decision made at its peak also determines what ending path the player is placed on. It gets a bonus point for already being a fan-favorite thanks to the trailers.
• METHOD_HYMME_GRANZERO=SPEAR is the first Song Magic Cocona crafts.
• EXEC_COSMOFLIPS. An apology and plea for forgiveness toward the planet.
• EXEC_REBIRTHIA=PROTOCOL/. Tyria's fully re-crafted Song to initiate the final sequence of the Planet Restoration Project summarizes everything done in the entire trilogy up to that point.
• Into the Light plays during Tyria's Normal Ending, summarizing her happiness and content in having found someone to love wholeheartedly.
• XaaaCi^note Protect with a Divine Power and Carry out a Holy Transformation plays during the final confrontation, and briefly during the opening trailer. A song of cosmic hatred and divine love, sung with Dynamic Waves at such a frequency that not even Reyvateils can fully understand it, leading to parts of it being replaced with distortion, static, and chaos. Even the parts that aren't distorted outright have three different singers singing effectively three different songs on top of each other.
  Oh, my beloved children... / Earnestly... / DOPLE ^note I WILL KILL ALL OF YOU.
• Ec Tisia, the ending theme not only for Qoga, but the trilogy as a whole.