Assertion: piano's note | /r/HasProperty | tuned
Facets:
value: extremely accurately
type: MANNER
value: a stretched octave)
type: OTHER
value: by sounding two notes
type: MANNER
value: farther apart
type: LOCATION
value: correctly
type: MANNER
Source sentences:
text: Once the temperament octave is finished the tuner tunes the rest of the piano, working outward from the temperament, and using octaves and other intervals to align each note with notes that have already been tuned.
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.
text: In stretched tuning, two notes an octave apart, whose fundamental frequencies theoretically have an exact 2:1 ratio, are tuned slightly farther apart (a stretched octave).
text: By sounding two notes close in pitch, and adjusting one so that the beat rate slows until it is stopped, a process known a zero beating, two notes can be tuned extremely accurately.