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.
Look at the number of keys on the keyboard. Digital keyboards can have as few as 25 keys or as many as 88. Digital pianos have the full 88 keys of a standard piano keyboard, and most workstations have at least 61 keys or more. Lower-end synthesizers may have as few as 25 keys, although most home-use keyboards come with 49, 61, or 76 keys. The more keys, the greater the instrument's range.