This is a great album. It's really inexplicable that this didn't get a concurrent LP release, given that it was a high-profile film by a popular composer, and featuring an instant standard. Even if it contained nothing but source music, you'd think a tie-in would have been inevitable.
I am working on a fictional LP lineup, much as I did with "Charade," that takes into account Mancini's preference for using source tunes while adding a few of the choice representative dramatic cues.
My fictional LP would include the Blossom Dearie vocal as the final track and replace the Mancini choir version with the Andy Williams vocal.