| 摘要 |
The present invention is a continuation-in-part of the inventor's prior invention (USPTO application Ser. No. 11/277,502 filed on 26 Mar. 2006), the added feature being a "Grand Staff reference marking" added to a row of the "staff of gray and white pitch stripes" of the prior invention, the said marking comprising one or more set of Grand Staff of five lines, the Grand Staff clef or clefs, with each Grand Staff line pointing or connected to a corresponding correct "white pitch stripe". Such "Grand Staff reference marking" feature enables the precise identification of the pitch stripes relative to their corresponding keys on the piano keyboard, and in terms of pitch names commonly used by students of music theories. The pitch names of all other pitch stripes can be easily derived from its physical location in relation to those pitch stripes connected to or pointed to by the lines of the "Grand Staff reference marking".
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