What the Numbers Mean. Many of the terms you see on labels or supplement web sites can help you understand how much of the vitamin or mineral you should take. The RDA (Recommended Dietary Allowance) and the AI (Adequate Intake) are the amounts of a vitamin or mineral you need to keep healthy and stay well-nourished.
Unless you have a Bosendorfer piano-then you have up to 97 Notes. ~If you have come here to find a key to unlock your piano please visit our online shop piano Keys and Locks department. For more information on piano keys and piano compass or visit our Piano Discussion Forums.
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.