Nonsense Syllables can be a mere simple harmonizing artifice/device as
heard in some barbershop recordings:
https://www.youtube.com/watch?v=N5_X-95YaWU
But, for me at least, to be Doo Wop, some words or hyphenated phrases
in the song must have two or more *different sounding* syllables.
Hence, most Dion & The Belmonts recordings are not Doo Wop.
Lets start with listing some true Doo Wop sounding records:
In The Still Of The Nite - The Five Satins
Little Star - The Elegants
Little Darlin' - The Diamonds
Whispering Bells - The Dell-Vikings
Come Go With Me - The Dell-Vikings
Blue Moon - The Marcels
Duke Of Earl - Gene Chandler
Smoky Places - The Corsairs
Here are some Dion & The Belmonts barbershop (ie not Doo Wop)
harmony recordings where the Belmonts use nonsense words with
only *one* syllable:
That's My Desire {a very good record nevertheless}
https://www.youtube.com/watch?v=laPdqCuIK5E
Where Or When
https://www.youtube.com/watch?v=JYIz_FH5Ym8
A Lover's Prayer
https://www.youtube.com/watch?v=CTmaSEKRL7U
Don't Pity Me
https://www.youtube.com/watch?v=AEmpn5bdpEU
similarly, "Hushabye" by the Mystics is not Doo Wop
I don't know when this was recorded, but here is a Dion
recording that obviously *is* Doo Wop:
Shu Bop (The Lost Track)
https://www.youtube.com/watch?v=GYQeqm-sDkc
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