Dr. Albert Sanderson revolutionized the process of piano tuning by inventing the electronic tuner. Although the device was first questioned by the industry among fears that it would put piano tuners out of business, it proved to be a helpful tool for the technician who could then complete a job faster and with measurable results. Improving on the original design, Al released the Accu-Tuner, which came complete with a microprocessor. Acceptance of the technology grew over the years. In the 1980s, the Piano Technicians Guild began using the product to qualify its members as certified tuners.
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