Werke Von Wolfgang Amadeus Mozart, Jos Wielakker Spielt Auf Der Klais-Orgel In Der Klosterkirche Kreuzberg Zu Bonn

Released in 1971 by CBS, this recording captures Jos Wielakker performing various works by Wolfgang Amadeus Mozart on the Klais organ located in the Klosterkirche Kreuzberg in Bonn. The project aimed to highlight the tonal versatility and acoustic qualities of the specific organ, a notable instrument maintained by the renowned Klais Orgelbau firm, which has a long-standing reputation for both restoring historical organs and building new concert hall instruments throughout Germany.

The recording fits within the context of the 1970s classical music market, where labels frequently produced site-specific organ albums to showcase the intersection of historic architecture and classical repertoire. These records were typically aimed at enthusiasts of organ music and collectors of regional European acoustic documentation. While not a widely publicized mainstream release, it remains a documented entry in the broader CBS classical catalog, reflecting the label's efforts to expand its repertoire beyond orchestral performances.