Earworm. An instrumental, as far as I remember, but with 'da da da'
voices. Possibly/probably 1960s.

Da da da da
(lower key) da da dum dum,
Da da da da
Dum dum dum dum

Or something like that ...

Possibly used as a DJ theme, or similar.

Obviously not this then (?)
https://www.youtube.com/watch?v=QToSribEM0s
--
Graham.

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