Tuning the bass end of a piano is comparatively easier and quicker than tuning the treble because in the bass there are fewer strings.
As if tuning the treble section wasn’t laborious enough, this German maker decided three strings per note weren’t adequate and added a fourth for the top two-and-a-half octaves! How tedious is that? not to mention the irritating combination of tuning wedges required.
Am I moaning again? I actually do enjoy my job. Still, I rather hope whoever patented this masterpiece didn’t make a four-tune!