I worked on a song once with Daniel Lanois and Ron Sexmith, 20 years ago, for the X files. That sounds surreal, it was a little.
Lanois did something surprising as we developed improvising on the song. He turned to Ron and asked him to drum. Ron said he’s not a drummer. Lanois said that’s ok. And Ron tried drumming and it was unique.
Since then I’ve asked people many times, specifically singers, to play an instrument that they don’t usually play. It usually makes very interesting results because they’re very aware of the groove and where the vocals are and their own limits.