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Rainbow Note is a South Korean city pop duo that debuted in April 2019 with the single "Line 1." The group consists of Seulhee and Sara, both of whom sing and compose songs. Seulhee is the lead vocalist, while Sara primarily plays the keyboard. Their full album Rainbow Note, released on June 8, 2020, charted at number 81 on the Bugs Top 100 Electro Albums Chart in the final week of June 2025, five years after its initial release.
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