In what year was the album “Nr. 1” released by André Heller?

In what year was the album “Nr. 1” released by André Heller?: The album “Nr. 1” was released in 1970 by André Heller, featuring 3 tracks.
What is the most successful song from the album “Nr. 1” by André Heller?: “Es war nur Liebelei” is the biggest hit from the album “Nr. 1” by André Heller.

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