Original: After the Second World War , during which his father died of natural causes , Solti was music director of the Bavarian State Orchestra in Munich ( where he gave the German premiere of Paul Hindemith 's opera Mathis der Maler , which had been banned under the Nazi regime ) and the Frankfurt Opera ( where he gave the German premiere of Alban Berg 's Lulu ) .
Simplified: After World War II Solti became music director of the Bavarian State Orchestra in Munich ( where he gave the first performance in Germany of Paul Hindemith 's opera Mathis der Maler , which had been banned when the Nazis were in power . He conducted the Frankfurt Opera where he gave the first performance in Germany of Alban Berg 's Lulu .