<em>Hello-</em>
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<em>The starred note on the piano is a C. </em>
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<em>Some additional (and optional) information...</em>
<em>There are groupings of white and black keys - first three, then four, then three, then four... on and on across the keyboard. The starred key, C, marks the beginning of the group of three. That's how I know where to find C, and then by extension A, B, D, E, F, and G.</em>
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<em>Hope this answers your question.</em>