Even without using key release data, as long as the let off is adjusted correctly, any note should ring on until the dampers return to the string. I would get the piano technician to make sure the regulation, is up to spec, esp. the dampers. Then go through the calibration procedure.
If a piano hasn't been regulated for some time, and then re-calibrated, particularly in a piano as old as a Mark II, there may be a mismatch between the mechanics and the electronics (esp. the piano tables).
Also bear in mind that, as new models were released, the recording and play back accuracy, esp at ppp, has been improved, so a Mark II will never play back as well as a Mark IV or E3, esp in view of Bill's comment.
athomik
On Feb 16 2012, Bill Brandom wrote:
>Key release velocity is captured and played back only on Disklavier PROs, Mark IV and E3 systems.
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>Bill
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>Sent from my iPhone
>
>On Feb 16, 2012, at 12:21 PM, Spencer chase wrote:
>> My off the wall guess is that the piano either does not record key release data at all or does it badly or does not respond to key release data that was recorded correctly. I do not know what models do or do not use key release data. If this is the case and it is not fixable with a firmware upgrade, it might be possible to post process the MIDI files to "improve" them. If the piano does not respond to or does not respond appropriately to key release data it might be possible to lengthen all notes slightly to achieve a degree of improvement.
>>
>> I probably have a program somewhere that I wrote that does this. If not, it should not be difficult to modify a similar one to do this. If this is something you want to try, I'll look through my huge folder of utilities. Messing around a little with such a utility would not be a huge effort but it makes sense to first get as much information about the problem as possible.
>>
>> If would also be useful to determine if it is a key release problem or if it is a pedal problem. Does it happen to all notes with and without sustain pedal?
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>> On 2/16/2012 7:38 AM, robertm wrote:
>>
>>>
>>> Hi Carol,
>>> My Disklavier reproduces my playing fairly well as far as how hard to strike the note. But there is something that doesn't sound right when the note is released--sort of a cutoff staccato effect even when playing legato. Since the hammers have no contact with the string after striking, I would guess it has something to do with how quickly the solenoid releases at the moment of striking. When I got the Disklavier, I was so happy with being able to get an authentic sense of what the audience experiences when I play, that I overlooked this--but over time I realized that this was interfering with my enjoyment of the reproduced music.