original: later that year he left for the hamburg opera to work as a chorus director .
simplifications: he went to the hamburg opera as a chorus director later that year . he worked as a chorus director at the hamburg opera , later that year . he left for the hamburg opera later that year to become a chorus director later that year he left for the hamburg opera to work as a choir director . later that year he left for the hamburg opera to work as a chorus director . later that year he left for the hamburg opera to work as a chorus director . later that year , he went to the hamburg opera to be a chorus director . later that year he left to work as a chorus director at the hamburg opera .