蒼天レゾナンス

蒼天レゾナンス (Souten Resonance) is a song by AI Singer Rain, posted with an original music video on the singer's official YouTube channel on 4 September 2026. The description presents it as high-speed symphonic rock on the theme that singing becomes strength, a story of voices joined together to overcome a fixed fate and protect someone. It skips any slow build and opens at full climax, with rapid double bass drums, heavy guitars, rising strings and brass under Rain's voice. The title nods to the anime Symphogear, but the description says it is an original song inspired by the mood of symphonic battle anime, not an official or fan-made song from any work. Yukky is credited with the lyrics, music and production and with the AI animation for the video, and the upload is tagged as AI music. It runs 5:31 and had about 3,700 views when read.