Returning to an example of off-beat clapping, see this worship service that includes a gospel song sung by an African American singing preacher*

"I'm On The Battlefield"- Late Rev. Aric Flemming


*"singing preacher"-one who can sing as well as preach

[Note 1:15 and longer. The woman in the pink dress is doing on-beat clapping and the woman in the black dress is doing off-beat clapping]