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.
Visit the Piano Learning Center of the Piano Technicians Guild at www.ptg.org for more fun ways to learn about the piano. Piano Parts Glossary String â when struck by a hammer, a string vibrates to create a soundwave. There are over 200 strings on a piano. Treble notes are each made up of three thin wire strings and bass notes are one thick wire string. The middle notes usually have two medium size wire strings that are struck at the same time to make a sound.