I saw The Music Man for the first time (I think I was in eighth grade) with Bert Parks doing a great job as Professor Harold Hill. I instantly fell in love with the show.
Barbara Cook was the original "Marion the Librarian" in The Music Man on Broadway opposite Robert Preston, for which she won the Tony Award. I literally wore my copy of the cast album out. In 1969, I fulfilled my dream of playing Harold Hill at Luce Park Theatre Under the Stars in Kansas City.
Here is Barbara singing from that original cast album. Rest in peace, Barbara.