Wim Blees asked about a B-flat tuning fork. That can be done. However, as Joseph Alkana suggested, if various players are going to use it to tune to, I would opt for a bar instead of a fork. If it's a bar, I can make one at any frequency between 300 and 600 Hz, tuned, calibrated, and mounted on a resonant box. Contrary to what Joseph described, I can give you a specified frequency at a specified temperature. If there is any demand for it at any given frequency, I can do it for a reasonable price. If it is only one of a kind, I can do that too, but it will be expensive. I can do a modified, tuned, and calibrated fork too, for a lot less than a nice bar. But as Ken Zahringer suggested, why not use an electronic device that will give you a continuous tone? I think $140 for Sanderson's device is reasonable, according to today's prices. Wim seems to think it's too expensive. But if you are only willing to pay a cheap price, you are going to get something cheap in return, and that's not what Sanderson sells. Jim Ellis
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