Origin

The character 譜 combines speech (言), the radical indicating this is about words or language, with 普, which serves as a sound hint for pronunciation. The connection to "musical score" likely developed because a musical score is a written system of notation—essentially a language for recording and communicating music. The same character was extended to mean genealogy, another kind of written record that preserves and transmits information across generations. This shows how the original sense of "written record or system" generalizes to different domains.