I use this type of calculation all the time. It's often applied to a more scientific problem than piano tuners, but the key is round numbers, approximations and

I use this type of calculation all the time. It's often applied to a more scientific problem than piano tuners, but the key is round numbers, approximations and simplified equations. It's an incredibly useful process if you have an idea sloshing around but don't know whether it would yield anything. 10 minutes and a few estimations and you know whether it's feasible or not.