Tweet Ain't You, Baby?

This song was written for They Learned About Women (MGM, 1930). The sheet music was published along with several other songs from the movie (and is listed in imdb.com). I just bought the DVD and watched it twice, and didn't see it performed in the film. According to imdb.com, it was performed by Gus Van. Is the footage lost, or am I just not paying close enough attention?

At about 7 minutes, 20 seconds into the film, I think that song is what he is singing at a piano on the train. It's just a brief part of a song. He, Jerry, has stayed up on the train, while his partner thinks Jerry's in bed. I didn't go farther into the film, so I don't know if there is anymore use of the song.

Rick