He made his debut at 20 , leading Mozart 's '' Magic Flute '' in St. Gallen , Switzerland , and from 1950 to 1962 was music and artistic director in Basel .
Switzerland /location/location/contains St. Gallen
Switzerland /location/location/contains Basel
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Switzerland
LOCATION
St. Gallen
LOCATION
/location/location/contains
Switzerland
LOCATION
Basel
LOCATION
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