Although employees may accrue more than three days of paid sick leave under the one hour for every 30 hours worked (or under an alternative accrual standard) under an accrual method, the law allows employers to limit an employeeâs use of paid sick leave to 24 hours or three days during a year.
Modern piano keyboards ordinarily have an octave span of 164â165 mm; resulting in the width of black keys averaging 13.7 mm and white keys about 23.5 mm wide at the base, disregarding space between keys. Several reduced-size standards have been proposed and marketed.
The white keys are notes that would be between strings on a Koto. You'll notice that every octave of a piano (repeating pattern of keys, with the top being at twice the frequency of the bottom) has twelve different notes: 5 black and 7 white keys. Think of a scale as a pie cut into twelve more-or-less even slices. The piano, a universal instrument, offers all 12 steps.