Complex sentence: The Bassoon Concerto in B-flat major, K.191/186e, is a bassoon concerto written in 1774 by Wolfgang Amadeus Mozart, is the most often performed and studied piece in the entire bassoon repertory.
Split into simpler sentences: The Bassoon Concerto in B-flat major, K.191/186e, is a bassoon concerto written in 1774 by Wolfgang Amadeus Mozart. It is the most often performed and studied piece in the entire bassoon repertory.