I have just quickly skimmed through the book and I am unfortunately unable to find a piece of music that directly involves smells as part of its appeal. Out of the three pieces of music that there are, the closest one that could be argued to use the scent of smell is the song that Louie's cousin sings in the vignette entitled "Louie, His Cousin & His Other Cousin." Note how she is described:
She can't come out--gotta baby-sit with Louie's sisters--but she stands in the doorway a lot, all the time singing, clicking her fingers, the same song:
Apples, peaches, pumpkin pah-ay.
You're in love and so am ah-ay.
Although there are no scents explicitly included in this song, the rich, visual images of the fruits and pumpkin pie clearly suggest their scent as relating to the experience of being in love with somebody who returns that feeling. If you can find another example of music involving smell that you wish to ask about, please feel free to respond to this question stating the vignette from which the music is taken.