In what year was the album “Irrenhaus” released by Keimzeit?

In what year was the album “Irrenhaus” released by Keimzeit?: The album “Irrenhaus” was released in 1990 by Keimzeit, featuring 13 tracks.
What is the most successful song from the album “Irrenhaus” by Keimzeit?: “Betrunken” is the biggest hit from the album “Irrenhaus” by Keimzeit.

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