Terpstra: Difference between revisions
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* [[Siemen Terpstra]], Dutch music theorist | * [[Siemen Terpstra]], Dutch music theorist | ||
* Terpstra Keyboard, named after Siemen Terpstra, which evolved directly into the [[Lumatone]] | * Terpstra Keyboard, named after Siemen Terpstra, which evolved directly into the [[Lumatone]] | ||
{{Disambiguation}} | |||