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Greetings Robert,

i still find it odd that a 70+ year old mechanism has no trouble with the repeated notes but a modern day, state of the are one does. i would be interested in knowing if the problem with the trill at lower velocity is just on the upright or if it is a problem with the grands too.

Tuesday, September 27, 2005, 5:07:25 PM, you wrote:

There is a limit to how rapidly a single note can be repeated. � One constraint has to do with how quickly the keyboard escapement mechanism can recover--that is, fall back into place and be ready for the next note. � If the solenoid pulse hits the key before the hammer has returned, the series of notes sounded can become chaotically erratic. It's a complex matter. For example, the rebound of the hammer will be quicker for higher velocity notes and thus possibly allow for a more rapid succession of high velocity notes than of low velocity notes. The mass of bass hammers is greater than those of � treble hammers. The effective spring constants of the both the strings and the hammer felts also vary from bass to treble.

Be aware that there are basic differences in upright keyboard escapements versus of grands. � The grand escapement is specifically designed to allow more rapid repetition of single notes.

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