Assertion: tuning fork's note | /r/HasProperty | a4
Facets:
value: generally
type: DEGREE
Source sentences:
text: In an aural tuning a tuning fork is used to tune the first note (generally A4) of the piano, and then a temperament octave is tuned between F3 and F4 using a variety of intervals and checks, until the tuner is satisfied that all the notes in the octave are correctly tuned.