Based on the clue 'bizet wrote as for this austrian surprise symphony...', what is the answer?

Based on the clue 'bizet adapted a melody by sebastian de yradier for...', what is the answer? What is associated with: bizet penned this 1875 opera where the title gal leaves don jose for a bullfighter big mistake? Based on the clue 'bizet said this austrian fellow prodigys music af...', what is the answer? What is associated with: bizet served in the national guard to protect paris from a siege of the city during this 1870… What is referred to by 'bizets carmen for example'? What is associated with: bjarni herjolfsson sold his ship to this man who used it to explore vinland around 1000? Based on the clue 'bjarni herjulfsson may have been the first to sigh...', what is the answer? Based on the clue 'bjork the former lead singer of this icelandic gro...', what is the answer?