question: What types of music did musicians begin to play the mandolins in ?
answer: Celtic , Bluegrass , Jazz and Rock-n-Roll styles -- and Classical too .
turker_answer: Musicians began to play the mandolins in Celtic , Bluegrass , Jazz and Rock-n-Roll styles - and Classical too .
rule-based: Musicians began to play the mandolins in celtic , Bluegrass , Jazz and Rock-n-Roll styles -- and Classical too .