Update: I did a lot of driving this weekend, driving about 7 hours round-trip between cities to try several different pianos "of interest".
Estonia: the piano was beautiful to look at. The owner told me it was only 2-3 years old, and I believe her. Beautiful craftsmanship all around, at least from what I could see.
The action was smooth and predictable across the keyboard. It also had a stiffer action than what I was used to -- not a bad thing, just different. The owner said it took her a while to get used to the action, but I suppose a technician could adjust it to make it more forgiving.
Sadly, the piano was very much out-of-tune. Still, I tried to discern what the true sonority of the instrument was. I played for about 45 minutes, trying to ignore the tuning (not easy to do!) ... but in general, I found the Estonia had a lot of presence. The mid-range and upper-range of the piano had nice colour, but the low-range was surprisingly weak. Then again, it's a 5'6" model, so there are limits to what a piano that size can reproduce in the low-end. Overall, I really heard what people call an 'old-world' sound when they refer to Estonia. To my ears, it doesn't sound anything like a Japanese or American piano -- and that's not a bad thing. It has its own tonal quality -- a very 'European' sound, whatever that might mean.
I was quite impressed with the Estonia but decided it wasn't for me. It really was a beautiful instrument -- especially for someone who played a lot of Romantic music, or classical literature in general ... but I play probably 80-90% jazz, and only dust off my classical books to "keep my chops up". It just didn't have the sound I was looking for.
Rebuilt Steinway L circa 1955: The piano originally was purchased in Los Angeles, and spent many years in California before being moved up to Canada in the late 1990's. A certified Steinway technician / dealer in my area performed a $12,000 restoration on it at that time (circa 2000).
I was met by the owner as well as a certified Steinway technician -- but not the same technician who performed the restoration. The owner filled me in on the history of the piano, and the technician talked gave his opinion of the piano. Although he wasn't the one who re-built the piano, he had been the person who had tuned it and performed some minor work on it in the past couple of years.
The piano had uneven tone between the low-mid-high registers. The tonal transitions between various points in the keyboard was noticeable. The high-end sounded overly 'crystalline' to my ears, and the bass sounded 'constrained', 'choked', and lacking in warmth. The mid-to-lower range (the octaves on either side of middle C) had that wonderful Steinway warmth, but the rest of the sound didn't impress that much. I kept wanting to fall in love with this Steinway L but it just wasn't happening...
Original ivory keys. Cosmetically they were somewhat worn and discolored, some with hair-line cracks ... but otherwise the keys played and felt fine.
The action felt very Steinway-esque, and that was probably its strongest point. It felt like a Steinway when you played it. I know that should sound obvious, but later in this post I'll recount an experience with a 'FrankenSteinway' that DIDN'T feel anything like a Steinway. More on that soon.
The seller is motivated (he is selling his house and downsizing) and the technician couldn't stop raving about the piano, especially for the price.
But I'm hesitating on this one. The piano didn't grab me. It didn't take my breath away. The technician said that for another $1200 he could get it tuned/regulated etc. exactly how I want. He threw this comment into the conversation like it was as simple as getting an oil change for your car. "I can do anything", he kept saying. "I'll make it sound exactly how you want. This piano is a steal. I mean, it's a Steinway!"
His effusive praise for this almost 60-year old piano (with 12 year old rebuild) was impressive but disconcerting. That's probably what's giving me the most trouble about that piano. If it's such a steal, why hasn't it sold already? I know the owner has been trying to sell it for many weeks...and a part of me felt like I wasn't getting truly unbiased information from the technician. In a way, I felt like I was being 'played' just as much as the piano.
Rebuilt Steinway L circa 1935: A recent re-build out of California. The piano had been completely re-done from legs to lid. It looked brand-new. Beautiful. I sat down to play it with high expectations.
It didn't sound like a Steinway. Not at all. Nor did it even feel remotely like one. The store owner said "this is one of the best re-builds I've seen. They replaced the Steinway action with Renner action throughout!"
I'm not faulting Renner or anything, but to me this piano felt like a FrankenSteinway. It was a Steinway in name (and body only) -- the guts inside were nothing like a Steinway. It sounded like a very good quality but very 'generic' American piano. It was strange playing that instrument -- it would be like driving a beautiful Cadillac, but every tactile response from the car's performance telling you that you're actually driving a basic commuter-car Chevy. Very odd.
Mason & Hamlin 5'4" (new): Very impressive for a small-ish piano. Huge bass response! Nice action. Felt like a beautiful high-quality instrument throughout. I'm just not that familiar with the brand, and the price point was higher than I expected. Impressive piano nonetheless.
Hailun: Nice instrument for the price. Great tone, good action. I found the key depth was slightly taller than I was used to, but it was a minor point. Enjoyable to play. Heck of a piano for the price. But the brand is a relatively unknown entity to me. I noticed small things about the piano as well -- the inner 'decal' on the soundboard was crooked, not applied properly at the factory. There were tiny 'ripples' in the finish of the body in a couple spots. I know those are superficial things, but they didn't inspire confidence.
Steinway O (brand new): beautiful in the mid-range and upper register. Low-end was muddled and lacking in depth and power. The store owner said he heard it as well and had decided that they were going to replace the bass strings with a different set to correct the sonority problem. "Come back on Tuesday, it will have new strings and it will sound totally different!"
I'm glad he's so pro-active about getting the instrument up-to-snuff and all that, but ... this is a BRAND-NEW $68,000 (list) instrument. Shouldn't it be 100% fantastic straight from the factory? It would be like looking at a new $68,000 BMW, and the dealer saying "oh yes, I've noticed the acceleration is a little sluggish so we're just going to swap out the fuel injection system. No big deal. If you come back on Tuesday, it will be a totally different car".
HOW DOES THAT MAKE SENSE!???
Boston 178: Warm bass response. Powerful sound. Very pleasant to play, nice consistent action throughout. Fantastic piano, really -- especially for the price. I was really impressed. It might sound heretical, but the Boston put the brand-new Steinway O to shame, IMHO.
Both pianos had just 'come off the truck' about 3 weeks ago, and hadn't had any work done on them besides tuning. The 'out-of-the-box' performance of the Boston was stellar. Can't say the same for the Steinway. Harsh truth, unfortunately.
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Summary ...
Well, that's what I've found out -- I'm now going to cogitate and ruminate about this whole episode. As people have mentioned in other posts, it's a buyer's market now so I think it's in my best interest to sit back and wait.