ers , ▁and ▁recording ▁with ▁them ▁in ▁ 1 9 5 5 . ▁Later ▁that ▁year ▁he ▁founded ▁Oscar ' s ▁T rio , ▁mode led ▁on ▁Oscar ▁Pet erson ' s ▁work . ▁During ▁the ▁ 1 9 6 0 s ▁he ▁worked ▁as ▁a ▁ten or ▁sa x oph on ist , ▁working ▁with ▁visit ing ▁American ▁jazz ▁mus icians ▁and ▁recording ▁in ▁his ▁own ▁right . ▁ ▁D old inger ' s ▁rec urr ing ▁jazz ▁project ▁Pass port , ▁started ▁in ▁ 1 9 7 1 ▁( then ▁called ▁" K laus ▁D old inger ' s ▁Pass port "), ▁still ▁enjo ys ▁huge ▁success ▁in ▁Germany . ▁In ▁its ▁influence ▁it ▁was ▁sometimes ▁called ▁the ▁European ▁version ▁of ▁We ather ▁Report . ▁ ▁At ▁various ▁times ▁members ▁of ▁Pass port ▁included ▁Peter ▁O ' M ara ▁( gu itar ), ▁Roberto ▁Di G io ia ▁( key boards ), ▁Patrick ▁S cal es ▁( b ass , ▁since ▁ 1 9 9 4 ), ▁Ernst ▁St ro er ▁(: de : Er n st ▁Str ö er ) ▁( per cussion , ▁since ▁ 1 9 8 9 ), ▁Christian ▁L ett ner ▁( d rum s , ▁since ▁ 2 0 0 0 ), ▁Michael ▁Hor nek ▁( key board ▁since ▁ 2 0 0 9 ), ▁Bib oul ▁Dar ou iche ▁( per cussion , ▁since ▁ 1 9 9 5 ) ▁and ▁others . ▁Gu ests ▁include ▁Brian ▁Aug er ▁( 1 9 7 3