In what year was the album “Harmony” released by 미란이?

In what year was the album “Harmony” released by 미란이?: The album “Harmony” was released in 2020 by 미란이, featuring 6 tracks.
What is the most successful song from the album “Harmony” by 미란이?: “Harmony” is the biggest hit from the album “Harmony” by 미란이.

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