Lynn wrote and sang some of Schoolhouse Rocks most recognizable tunes including Interplanet Janet The Great American Melting Pot and A Noun is a Person Place or Thing She was discovered by producer George Newall who heard her strumming and asked her to try writing a song for the series The Preamble was a hit and Lynn wrote more songs for Schoolhouse Rock This led to her getting more jobs as a freelance composer and singer which really launched her career and eventually included awardwinning work for Broadway and movies