That was a beautiful video of "Somewhere", Letty. Did you know:
Wikipedia:
"Sondheim's big break came when he wrote the lyrics to West Side Story, accompanying Leonard Bernstein's music and Arthur Laurents's book. The 1957 show, directed by Jerome Robbins, ran for 732 performances. While this may be the best-known show Sondheim ever worked on, he has expressed some dissatisfaction with his lyrics, stating they don't always fit the characters and are sometimes too consciously poetic. "
I heard somewhere (I think on a video I have of the making of Bernstein's own recording of West Side Story) that Bernstein said Sondheim was never given enough credit for the lyrics. I love the lyrics.