Luckily for me (sarcasm intended), I had to tune a Kimball LaPetite this week. It was quite timely, as it answered my own questions about the Kimball piano I had regulated a couple weeks ago. They are quite different pianos. Piano 1 is the one I regulated and inquired about originally. Piano 2 is the one I saw Monday of this week.The differences are:
Piano 1 had a Kimball name on the fallboard. Piano 2 had a LaPetite name on the fallboard.Piano 1 has a music desk that slides out, while the LaPetite (Piano 2) has one that pops into place (with the spherical screw heads into slots).Piano 1 had agraffes in the bass and tenor sections, a horizontally laminated bridge with a bridge cap. Piano 2 had capo bars (no agraffes anywhere), a horizontally laminated bridge, but no separate cap.Piano 1 had a better designed plate. Piano 2 had a plate with much less support (see the attached photo of piano 2. The plate of Piano 1 is at this link).Piano 1 is a little longer than the LaPetite (Piano 2).Piano 1 looks like more care went into it (muted back scale, bridge pins not protruding up 5-6 mm, hitch pin underfelt, etc.)The actions were similar, appearing about the same. However, the action on Piano 2 was very noisy, even after I tightened all hammer and wippen flange screws. The one I regulated (Piano 1) was about as noisy as any other action. I didn't have time to dig deeper than this, as I was running late from having to slide out the action to align a hammer that was hitting a neighboring string. (To get the action out, one must remove 4 screws in the keyslip, 4 screws in the cheek blocks (1 underneath and one on top), then 4 screws that hold the action shift guides to the keybed. Not the quickest job, and while I had everything out I also tightened the action screws. I had to rush to the next appointment.)Piano 1 sounded quite good (it actually did), while Piano 2 sounded pretty nasty. Both of them were tuned twice with RCT and a P12th tuning. (Piano 1 did get hammer reshaping and repinning, as well as regulation.)Not sure if this will be valuable for anyone else, but it at least helped satisfy my own curiosity.