Last week I regulated a Baldwin R baby grand, vintage 1950, which featured five interesting points in an apparently standard-issue regulation.

1.  Hidden studs, including the two outside ones – first time I’ve seen this particular configuration. Unlike the Asian variety, pre-set to neutrally position the balancerail height in a flexible keyframe, these adjusted the bedding of a stiff-style keyframe. To provide access, I removed five sharps... 

Method and Style: I recommend the pick-and-add method of weighoff. Key balancing weights are used in pairs, upweight on the bottom, pairing weight on top. Add a pair (downweight) to engage the key and note the speed of hammer travel. Pick the pairing weight off (leaving the upweight) and note the speed of hammer return. These two steps reveal th...