You should look for workplace fatalities in construction, preferably historical (before safety guidelines).
I don’t know where I would find them, and I’d guess that any reliable figures would be very recent: OSHA wasn’t even founded until the 1970s, by which point there’s already been huge shifts towards safer jobs.
A much bigger issue is that one has to actually stand under the piano as it is being lifted/lowered. The rate of such happening can be much (orders of magnitude) below that of fatal workplace accidents in general, and accounting for this would lower the estimate.
That was the point of going for lifetime risks, to avoid having to directly estimate per-lifting fatality rates—I thought about it for a while, but I couldn’t see any remotely reasonable way to estimate how many pianos would fall and how often people would be near enough to be hit by it (which I could then estimate against number of pianos ever lifted to pull out a fatality rate, so instead I reversed the procedure and went with an overall fatality rate across all jobs).
You also need to account for the fact that some proportion of piano-hoister work-related fatalities will be to other factors like heatstroke or heart attack or wrapping the rope around their arm.
I don’t know where I would find them, and I’d guess that any reliable figures would be very recent: OSHA wasn’t even founded until the 1970s, by which point there’s already been huge shifts towards safer jobs.
That was the point of going for lifetime risks, to avoid having to directly estimate per-lifting fatality rates—I thought about it for a while, but I couldn’t see any remotely reasonable way to estimate how many pianos would fall and how often people would be near enough to be hit by it (which I could then estimate against number of pianos ever lifted to pull out a fatality rate, so instead I reversed the procedure and went with an overall fatality rate across all jobs).
You also need to account for the fact that some proportion of piano-hoister work-related fatalities will be to other factors like heatstroke or heart attack or wrapping the rope around their arm.