Inventor James Lee Plamondon Ronald Frank Gorow Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number EP05747038A Other languages German ( de) Google Patents Isomorphic solfa music notation and keyboard Google Patents EP1759382A1 - Isomorphic solfa music notation and keyboard EP1759382A1 - Isomorphic solfa music notation and keyboard
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