In the 1980s, Johan Brögger modified the Boehm flute by fixing two major problems that had existed for nearly 150 years: maladjustment between certain keys and problems between the G and B♭ keys.
I 1980'erne modificerede Johan Brögger Böhm-fløjten ved at løse to store problemer, der havde eksisteret i næsten 150 år: dårlig justering mellem bestemte klapper og problemer mellem G-klappen og ♭-klappen.