Complex sentence: In January 2015, Petrenko returned to the Metropolitan Opera in the title role in a new production of "Bluebeard's Castle" as well as concerts with the Bamberger Symphoniker, Finnish Radio Symphony Orchestra, and Swedish Radio Symphony Orchestra.
Split into simpler sentences: In January 2015, Petrenko returned to the Metropolitan Opera in the title role of a new production of "Bluebeard's Castle". He has also performed in concerts with the Bamberger Symphoniker, Finnish Radio Symphony Orchestra, and Swedish Radio Symphony Orchestra.