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September 2008

2008.09.18

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Typical Roll Speed for 20er Rolls
By Harald Mueller

Robbie asked yesterday, regarding 20er rolls:

    If 70mm per second is the "exception," then, pray tell, what is
    the well-defined speed of the "rule"?

See the scale definition at - ahem -
     http://www.mmdigest.com/Gallery/Sounds/mueller3.html 

There is of course a more qualified answer, as each organ manufacturer
has his own idea about this.  But with hand-cranked organs and rolls
without "spiral correction," it is obviously moot to discuss speed
differences of one or two millimeters per second.

Harald Mueller

(Message sent Thu 18 Sep 2008, 06:59:51 GMT, from time zone GMT+0200.)

Key Words in Subject: 20er, Roll, Rolls, Speed, Typical

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