Klaus Mäkelä

The provided articles do not mention Klaus Mäkelä. Article 1 discusses the Elbphilharmonie's tenth anniversary and a concert series by ProArte. Article 2 outlines the upcoming season at the Philharmonie de Paris, highlighting a Billie Holiday exhibition and Ben Harper's guitars, alongside a wide range of musical performances from classical to contemporary genres. Without any mention of Klaus Mäkelä in either article, it's impossible to determine his background, current newsworthiness, recent events related to him, or his current relevance based on the provided information. Therefore, I cannot provide a summary about him.