In what year was the album “MELODIEN” released by MEL?

In what year was the album “MELODIEN” released by MEL?: The album “MELODIEN” was released in 2021 by MEL, featuring 15 tracks.
What is the most successful song from the album “MELODIEN” by MEL?: “Ohne mich” is the biggest hit from the album “MELODIEN” by MEL.

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