Dave: Clearly, more 'gathering' on your part was in order.

Lucky you, I have already posted a dozen+ references for RN use of all manner of rhythmic sound when going about any number of tasks in unison, complete with published sheet music for some titles. I also have at least a few authors discouraging the practice, and not just in the RN, (as above.)

Methinks both sides of the debate need work and lots of it.