What is the term for rewriting melodies at the same pitch in an alternate clef?

The correct term for rewriting melodies at the same pitch using an alternate clef is transposition. This process involves changing the notation of a piece of music without altering its pitch, meaning that the actual notes sound the same, but they are represented differently depending on the clef being used.

Transposition is particularly useful when adapting music for different instruments that utilize various clefs, such as treble or bass clefs. For instance, a melody originally notated in the treble clef can be rewritten in the bass clef while maintaining the same pitch, which is essential for performers who read music in different clefs.

In contrast, transcription typically refers to converting music into a different medium, such as adapting a piece for a different genre or instrumentation, which might involve changing the pitch or arrangement of the music. Modification refers to altering parts of a piece, which can include changes in rhythm, melody, or harmony. Notation, on the other hand, refers simply to the system of writing music itself, rather than the act of rewriting it in a different clef.