In what year was the album “7 Tage EP” released by Joshi Mizu?

In what year was the album “7 Tage EP” released by Joshi Mizu?: The album “7 Tage EP” was released in 2015 by Joshi Mizu, featuring 7 tracks.
What is the most successful song from the album “7 Tage EP” by Joshi Mizu?: “Montag” is the biggest hit from the album “7 Tage EP” by Joshi Mizu.

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