How To Tune A Piano With A Tuning Fork. While continuously striking the piano key firmly, slowly turn the pin with the tuning wrench until the string is in tune. Istrobosoft is also very good at easily measuring pitches to within 0.1 cents.
This frequency is an international standard for note la or a. To tune a piano, you would start by playing the piano's a key while ringing an a tuning fork. If there are two strings, tune the one to the right.
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Miriamsong professional piano tuning kit. The etd is best for that. Istrobosoft can be used to tune a piano but we use it to tune a4 accurately. The tuning fork is susceptible to temperature changes and we often tune a4 at 25% overpull or 33% underpull for pitch raises/drops.