"Since the Last Goodbye"

Last night I learned the bass part for one section of "Pipeline," so now I know at least a little bit of a part for every song on Ammonia Avenue (although I haven't recorded all of them because many are fragmentary).  I listened to Ammonia Avenue to-day and noticed a small thing about "Since the Last Goodbye."  The "falling" in the line "Remember all the leaves were falling" is sung to the notes C# B B, so there's a descent in the music (albeit a small one) to mirror the descent mentioned in the lyric.