How can a song change key but keep the same melody?
A melody can start higher while preserving the sequence of intervals between its notes. Transposition applies the same pitch shift throughout, so the relationships stay consistent. Moving just some notes differently can change the melody’s interval pattern even if its general outline looks similar.
Questions you could explore
- What would you compare to check that every note moved by the same interval?
- How does transposing a melody differ from changing only some notes to fit a new harmony?
Start reading
- Open Music Theory / Hybrid Pedagogy PublishingTransposition
Open Music Theory explains transposition as preserving interval content and order.
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