"Blue Jay Way"

When I listened to Magical Mystery Tour yester-day I noticed a small thing about "Blue Jay Way."  The "long" in the line "Please don't you be very long" is sung with a melisma (B A B, I think).  Since the word is stretched over a number of notes, there's a musical representation of length.  Near the end, when "Don't be long" is repeated over and over, there's the same feature with different melismas (A G F# E and F# E)