Do piano tuners listen to the beat frequency between their tuning fork and wire they are tuning?

Piano tuners adjust the strings of the piano so they vibrate at specific frequencies that correspond to the notes of the musical scale. While piano tuners may listen for beats between the tuning fork and the string, they primarily rely on their sense of pitch and tuning skills to achieve the desired sound. Piano tuners consider various factors such as the frequency of the reference pitch (usually A4 at 440 Hz), the intervals between notes, and the overall tonal balance of the piano.