Klaus Mertens und German Person-Info 

( Ich bin Klaus Mertens)
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Klaus MertensSan Francisco Symphony

www.sfsymphony.org
Klaus Mertens was born in Kleve, Germany, and received his first singing lessons as a child. Following completion of his Abitur (high school diploma) he studied ... Klaus Mertens was born in Kleve, Germany, and received his first singing lessons as a child. Following completion of his Abitur (high school diploma) he studied ...
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